zig

build.zig

@@ -17,6 +17,7 @@ const Arch = std.Target.Cpu.Arch;
 const OperatingSystem = @import("src/env.zig").OperatingSystem;
 
 const pathRel = fs.path.relative;
+const protobuf = @import("protobuf");
 
 /// Do not rename this constant. It is scanned by some scripts to determine which zig version to install.
 const recommended_zig_version = "0.14.0";
@@ -283,6 +284,36 @@ pub fn build(b: *Build) !void {
         var bun_obj = addBunObject(b, &build_options);
         step.dependOn(&bun_obj.step);
         step.dependOn(addInstallObjectFile(b, bun_obj, "bun-zig", obj_format));
+
+        const protobuf_dep = b.dependency("protobuf", .{
+            .target = target,
+            .optimize = optimize,
+        });
+
+        // and lastly use the dependency as a module
+        bun_obj.root_module.addImport("protobuf", protobuf_dep.module("protobuf"));
+
+        const gen_proto = b.step("gen-proto", "generates zig files from protocol buffer definitions");
+
+        const protoc_step = protobuf.RunProtocStep.create(b, protobuf_dep.builder, target, .{
+            // out directory for the generated zig files
+            .destination_directory = b.path("src"),
+            .source_files = &.{
+                "opentelemetry/proto/collector/logs/v1/logs_service.proto",
+                "opentelemetry/proto/collector/metrics/v1/metrics_service.proto",
+                "opentelemetry/proto/collector/profiles/v1development/profiles_service.proto",
+                "opentelemetry/proto/collector/trace/v1/trace_service.proto",
+                "opentelemetry/proto/common/v1/common.proto",
+                "opentelemetry/proto/logs/v1/logs.proto",
+                "opentelemetry/proto/metrics/v1/metrics.proto",
+                "opentelemetry/proto/profiles/v1development/profiles.proto",
+                "opentelemetry/proto/resource/v1/resource.proto",
+                "opentelemetry/proto/trace/v1/trace.proto",
+            },
+            .include_directories = &.{},
+        });
+
+        gen_proto.dependOn(&protoc_step.step);
     }
 
     // zig build windows-shim

build.zig.zon

@@ -0,0 +1,52 @@
+.{
+    // This is the default name used by packages depending on this one. For
+    // example, when a user runs `zig fetch --save <url>`, this field is used
+    // as the key in the `dependencies` table. Although the user can choose a
+    // different name, most users will stick with this provided value.
+    //
+    // It is redundant to include "zig" in this name because it is already
+    // within the Zig package namespace.
+    .name = .bun,
+
+    // This is a [Semantic Version](https://semver.org/).
+    // In a future version of Zig it will be used for package deduplication.
+    .version = "0.0.0",
+
+    // Together with name, this represents a globally unique package
+    // identifier. This field is generated by the Zig toolchain when the
+    // package is first created, and then *never changes*. This allows
+    // unambiguous detection of one package being an updated version of
+    // another.
+    //
+    // When forking a Zig project, this id should be regenerated (delete the
+    // field and run `zig build`) if the upstream project is still maintained.
+    // Otherwise, the fork is *hostile*, attempting to take control over the
+    // original project's identity. Thus it is recommended to leave the comment
+    // on the following line intact, so that it shows up in code reviews that
+    // modify the field.
+    .fingerprint = 0x4c5007b0ab0b4690, // Changing this has security and trust implications.
+
+    // Tracks the earliest Zig version that the package considers to be a
+    // supported use case.
+    .minimum_zig_version = "0.14.0",
+
+    // This field is optional.
+    // Each dependency must either provide a `url` and `hash`, or a `path`.
+    // `zig build --fetch` can be used to fetch all dependencies of a package, recursively.
+    // Once all dependencies are fetched, `zig build` no longer requires
+    // internet connectivity.
+    .dependencies = .{
+        .protobuf = .{
+            .url = "git+https://github.com/Arwalk/zig-protobuf#27f8910aac3840722817d0bd56750916afd619a4",
+            .hash = "protobuf-2.0.0-0e82aqCZGwCTEk11MsgMiy1G4ZP2Q1QKX4QJ9dqfF_M6",
+        },
+    },
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+        // For example...
+        //"LICENSE",
+        //"README.md",
+    },
+}

src/opentelemetry/proto/collector/logs/v1.pb.zig

@@ -0,0 +1,44 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.collector.logs.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.logs.v1
+const opentelemetry_proto_logs_v1 = @import("../../logs/v1.pb.zig");
+
+pub const ExportLogsServiceRequest = struct {
+    resource_logs: ArrayList(opentelemetry_proto_logs_v1.ResourceLogs),
+
+    pub const _desc_table = .{
+        .resource_logs = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportLogsServiceResponse = struct {
+    partial_success: ?ExportLogsPartialSuccess = null,
+
+    pub const _desc_table = .{
+        .partial_success = fd(1, .{ .SubMessage = {} }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportLogsPartialSuccess = struct {
+    rejected_log_records: i64 = 0,
+    error_message: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .rejected_log_records = fd(1, .{ .Varint = .Simple }),
+        .error_message = fd(2, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/collector/metrics/v1.pb.zig

@@ -0,0 +1,44 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.collector.metrics.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.metrics.v1
+const opentelemetry_proto_metrics_v1 = @import("../../metrics/v1.pb.zig");
+
+pub const ExportMetricsServiceRequest = struct {
+    resource_metrics: ArrayList(opentelemetry_proto_metrics_v1.ResourceMetrics),
+
+    pub const _desc_table = .{
+        .resource_metrics = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportMetricsServiceResponse = struct {
+    partial_success: ?ExportMetricsPartialSuccess = null,
+
+    pub const _desc_table = .{
+        .partial_success = fd(1, .{ .SubMessage = {} }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportMetricsPartialSuccess = struct {
+    rejected_data_points: i64 = 0,
+    error_message: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .rejected_data_points = fd(1, .{ .Varint = .Simple }),
+        .error_message = fd(2, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/collector/profiles/v1development.pb.zig

@@ -0,0 +1,44 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.collector.profiles.v1development
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.profiles.v1development
+const opentelemetry_proto_profiles_v1development = @import("../../profiles/v1development.pb.zig");
+
+pub const ExportProfilesServiceRequest = struct {
+    resource_profiles: ArrayList(opentelemetry_proto_profiles_v1development.ResourceProfiles),
+
+    pub const _desc_table = .{
+        .resource_profiles = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportProfilesServiceResponse = struct {
+    partial_success: ?ExportProfilesPartialSuccess = null,
+
+    pub const _desc_table = .{
+        .partial_success = fd(1, .{ .SubMessage = {} }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportProfilesPartialSuccess = struct {
+    rejected_profiles: i64 = 0,
+    error_message: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .rejected_profiles = fd(1, .{ .Varint = .Simple }),
+        .error_message = fd(2, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/collector/trace/v1.pb.zig

@@ -0,0 +1,44 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.collector.trace.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.trace.v1
+const opentelemetry_proto_trace_v1 = @import("../../trace/v1.pb.zig");
+
+pub const ExportTraceServiceRequest = struct {
+    resource_spans: ArrayList(opentelemetry_proto_trace_v1.ResourceSpans),
+
+    pub const _desc_table = .{
+        .resource_spans = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportTraceServiceResponse = struct {
+    partial_success: ?ExportTracePartialSuccess = null,
+
+    pub const _desc_table = .{
+        .partial_success = fd(1, .{ .SubMessage = {} }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExportTracePartialSuccess = struct {
+    rejected_spans: i64 = 0,
+    error_message: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .rejected_spans = fd(1, .{ .Varint = .Simple }),
+        .error_message = fd(2, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/common/v1.pb.zig

@@ -0,0 +1,112 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.common.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+
+pub const AnyValue = struct {
+    value: ?value_union,
+
+    pub const _value_case = enum {
+        string_value,
+        bool_value,
+        int_value,
+        double_value,
+        array_value,
+        kvlist_value,
+        bytes_value,
+    };
+    pub const value_union = union(_value_case) {
+        string_value: ManagedString,
+        bool_value: bool,
+        int_value: i64,
+        double_value: f64,
+        array_value: ArrayValue,
+        kvlist_value: KeyValueList,
+        bytes_value: ManagedString,
+        pub const _union_desc = .{
+            .string_value = fd(1, .String),
+            .bool_value = fd(2, .{ .Varint = .Simple }),
+            .int_value = fd(3, .{ .Varint = .Simple }),
+            .double_value = fd(4, .{ .FixedInt = .I64 }),
+            .array_value = fd(5, .{ .SubMessage = {} }),
+            .kvlist_value = fd(6, .{ .SubMessage = {} }),
+            .bytes_value = fd(7, .Bytes),
+        };
+    };
+
+    pub const _desc_table = .{
+        .value = fd(null, .{ .OneOf = value_union }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ArrayValue = struct {
+    values: ArrayList(AnyValue),
+
+    pub const _desc_table = .{
+        .values = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const KeyValueList = struct {
+    values: ArrayList(KeyValue),
+
+    pub const _desc_table = .{
+        .values = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const KeyValue = struct {
+    key: ManagedString = .Empty,
+    value: ?AnyValue = null,
+
+    pub const _desc_table = .{
+        .key = fd(1, .String),
+        .value = fd(2, .{ .SubMessage = {} }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const InstrumentationScope = struct {
+    name: ManagedString = .Empty,
+    version: ManagedString = .Empty,
+    attributes: ArrayList(KeyValue),
+    dropped_attributes_count: u32 = 0,
+
+    pub const _desc_table = .{
+        .name = fd(1, .String),
+        .version = fd(2, .String),
+        .attributes = fd(3, .{ .List = .{ .SubMessage = {} } }),
+        .dropped_attributes_count = fd(4, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const EntityRef = struct {
+    schema_url: ManagedString = .Empty,
+    type: ManagedString = .Empty,
+    id_keys: ArrayList(ManagedString),
+    description_keys: ArrayList(ManagedString),
+
+    pub const _desc_table = .{
+        .schema_url = fd(1, .String),
+        .type = fd(2, .String),
+        .id_keys = fd(3, .{ .List = .String }),
+        .description_keys = fd(4, .{ .List = .String }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/logs/v1.pb.zig

@@ -0,0 +1,117 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.logs.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.common.v1
+const opentelemetry_proto_common_v1 = @import("../common/v1.pb.zig");
+/// import package opentelemetry.proto.resource.v1
+const opentelemetry_proto_resource_v1 = @import("../resource/v1.pb.zig");
+
+pub const SeverityNumber = enum(i32) {
+    SEVERITY_NUMBER_UNSPECIFIED = 0,
+    SEVERITY_NUMBER_TRACE = 1,
+    SEVERITY_NUMBER_TRACE2 = 2,
+    SEVERITY_NUMBER_TRACE3 = 3,
+    SEVERITY_NUMBER_TRACE4 = 4,
+    SEVERITY_NUMBER_DEBUG = 5,
+    SEVERITY_NUMBER_DEBUG2 = 6,
+    SEVERITY_NUMBER_DEBUG3 = 7,
+    SEVERITY_NUMBER_DEBUG4 = 8,
+    SEVERITY_NUMBER_INFO = 9,
+    SEVERITY_NUMBER_INFO2 = 10,
+    SEVERITY_NUMBER_INFO3 = 11,
+    SEVERITY_NUMBER_INFO4 = 12,
+    SEVERITY_NUMBER_WARN = 13,
+    SEVERITY_NUMBER_WARN2 = 14,
+    SEVERITY_NUMBER_WARN3 = 15,
+    SEVERITY_NUMBER_WARN4 = 16,
+    SEVERITY_NUMBER_ERROR = 17,
+    SEVERITY_NUMBER_ERROR2 = 18,
+    SEVERITY_NUMBER_ERROR3 = 19,
+    SEVERITY_NUMBER_ERROR4 = 20,
+    SEVERITY_NUMBER_FATAL = 21,
+    SEVERITY_NUMBER_FATAL2 = 22,
+    SEVERITY_NUMBER_FATAL3 = 23,
+    SEVERITY_NUMBER_FATAL4 = 24,
+    _,
+};
+
+pub const LogRecordFlags = enum(i32) {
+    LOG_RECORD_FLAGS_DO_NOT_USE = 0,
+    LOG_RECORD_FLAGS_TRACE_FLAGS_MASK = 255,
+    _,
+};
+
+pub const LogsData = struct {
+    resource_logs: ArrayList(ResourceLogs),
+
+    pub const _desc_table = .{
+        .resource_logs = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ResourceLogs = struct {
+    resource: ?opentelemetry_proto_resource_v1.Resource = null,
+    scope_logs: ArrayList(ScopeLogs),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .resource = fd(1, .{ .SubMessage = {} }),
+        .scope_logs = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ScopeLogs = struct {
+    scope: ?opentelemetry_proto_common_v1.InstrumentationScope = null,
+    log_records: ArrayList(LogRecord),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .scope = fd(1, .{ .SubMessage = {} }),
+        .log_records = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const LogRecord = struct {
+    time_unix_nano: u64 = 0,
+    observed_time_unix_nano: u64 = 0,
+    severity_number: SeverityNumber = @enumFromInt(0),
+    severity_text: ManagedString = .Empty,
+    body: ?opentelemetry_proto_common_v1.AnyValue = null,
+    attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    dropped_attributes_count: u32 = 0,
+    flags: u32 = 0,
+    trace_id: ManagedString = .Empty,
+    span_id: ManagedString = .Empty,
+    event_name: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .time_unix_nano = fd(1, .{ .FixedInt = .I64 }),
+        .observed_time_unix_nano = fd(11, .{ .FixedInt = .I64 }),
+        .severity_number = fd(2, .{ .Varint = .Simple }),
+        .severity_text = fd(3, .String),
+        .body = fd(5, .{ .SubMessage = {} }),
+        .attributes = fd(6, .{ .List = .{ .SubMessage = {} } }),
+        .dropped_attributes_count = fd(7, .{ .Varint = .Simple }),
+        .flags = fd(8, .{ .FixedInt = .I32 }),
+        .trace_id = fd(9, .Bytes),
+        .span_id = fd(10, .Bytes),
+        .event_name = fd(12, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/metrics/v1.pb.zig

@@ -0,0 +1,339 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.metrics.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.common.v1
+const opentelemetry_proto_common_v1 = @import("../common/v1.pb.zig");
+/// import package opentelemetry.proto.resource.v1
+const opentelemetry_proto_resource_v1 = @import("../resource/v1.pb.zig");
+
+pub const AggregationTemporality = enum(i32) {
+    AGGREGATION_TEMPORALITY_UNSPECIFIED = 0,
+    AGGREGATION_TEMPORALITY_DELTA = 1,
+    AGGREGATION_TEMPORALITY_CUMULATIVE = 2,
+    _,
+};
+
+pub const DataPointFlags = enum(i32) {
+    DATA_POINT_FLAGS_DO_NOT_USE = 0,
+    DATA_POINT_FLAGS_NO_RECORDED_VALUE_MASK = 1,
+    _,
+};
+
+pub const MetricsData = struct {
+    resource_metrics: ArrayList(ResourceMetrics),
+
+    pub const _desc_table = .{
+        .resource_metrics = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ResourceMetrics = struct {
+    resource: ?opentelemetry_proto_resource_v1.Resource = null,
+    scope_metrics: ArrayList(ScopeMetrics),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .resource = fd(1, .{ .SubMessage = {} }),
+        .scope_metrics = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ScopeMetrics = struct {
+    scope: ?opentelemetry_proto_common_v1.InstrumentationScope = null,
+    metrics: ArrayList(Metric),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .scope = fd(1, .{ .SubMessage = {} }),
+        .metrics = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Metric = struct {
+    name: ManagedString = .Empty,
+    description: ManagedString = .Empty,
+    unit: ManagedString = .Empty,
+    metadata: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    data: ?data_union,
+
+    pub const _data_case = enum {
+        gauge,
+        sum,
+        histogram,
+        exponential_histogram,
+        summary,
+    };
+    pub const data_union = union(_data_case) {
+        gauge: Gauge,
+        sum: Sum,
+        histogram: Histogram,
+        exponential_histogram: ExponentialHistogram,
+        summary: Summary,
+        pub const _union_desc = .{
+            .gauge = fd(5, .{ .SubMessage = {} }),
+            .sum = fd(7, .{ .SubMessage = {} }),
+            .histogram = fd(9, .{ .SubMessage = {} }),
+            .exponential_histogram = fd(10, .{ .SubMessage = {} }),
+            .summary = fd(11, .{ .SubMessage = {} }),
+        };
+    };
+
+    pub const _desc_table = .{
+        .name = fd(1, .String),
+        .description = fd(2, .String),
+        .unit = fd(3, .String),
+        .metadata = fd(12, .{ .List = .{ .SubMessage = {} } }),
+        .data = fd(null, .{ .OneOf = data_union }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Gauge = struct {
+    data_points: ArrayList(NumberDataPoint),
+
+    pub const _desc_table = .{
+        .data_points = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Sum = struct {
+    data_points: ArrayList(NumberDataPoint),
+    aggregation_temporality: AggregationTemporality = @enumFromInt(0),
+    is_monotonic: bool = false,
+
+    pub const _desc_table = .{
+        .data_points = fd(1, .{ .List = .{ .SubMessage = {} } }),
+        .aggregation_temporality = fd(2, .{ .Varint = .Simple }),
+        .is_monotonic = fd(3, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Histogram = struct {
+    data_points: ArrayList(HistogramDataPoint),
+    aggregation_temporality: AggregationTemporality = @enumFromInt(0),
+
+    pub const _desc_table = .{
+        .data_points = fd(1, .{ .List = .{ .SubMessage = {} } }),
+        .aggregation_temporality = fd(2, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExponentialHistogram = struct {
+    data_points: ArrayList(ExponentialHistogramDataPoint),
+    aggregation_temporality: AggregationTemporality = @enumFromInt(0),
+
+    pub const _desc_table = .{
+        .data_points = fd(1, .{ .List = .{ .SubMessage = {} } }),
+        .aggregation_temporality = fd(2, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Summary = struct {
+    data_points: ArrayList(SummaryDataPoint),
+
+    pub const _desc_table = .{
+        .data_points = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const NumberDataPoint = struct {
+    attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    start_time_unix_nano: u64 = 0,
+    time_unix_nano: u64 = 0,
+    exemplars: ArrayList(Exemplar),
+    flags: u32 = 0,
+    value: ?value_union,
+
+    pub const _value_case = enum {
+        as_double,
+        as_int,
+    };
+    pub const value_union = union(_value_case) {
+        as_double: f64,
+        as_int: i64,
+        pub const _union_desc = .{
+            .as_double = fd(4, .{ .FixedInt = .I64 }),
+            .as_int = fd(6, .{ .FixedInt = .I64 }),
+        };
+    };
+
+    pub const _desc_table = .{
+        .attributes = fd(7, .{ .List = .{ .SubMessage = {} } }),
+        .start_time_unix_nano = fd(2, .{ .FixedInt = .I64 }),
+        .time_unix_nano = fd(3, .{ .FixedInt = .I64 }),
+        .exemplars = fd(5, .{ .List = .{ .SubMessage = {} } }),
+        .flags = fd(8, .{ .Varint = .Simple }),
+        .value = fd(null, .{ .OneOf = value_union }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const HistogramDataPoint = struct {
+    attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    start_time_unix_nano: u64 = 0,
+    time_unix_nano: u64 = 0,
+    count: u64 = 0,
+    sum: ?f64 = null,
+    bucket_counts: ArrayList(u64),
+    explicit_bounds: ArrayList(f64),
+    exemplars: ArrayList(Exemplar),
+    flags: u32 = 0,
+    min: ?f64 = null,
+    max: ?f64 = null,
+
+    pub const _desc_table = .{
+        .attributes = fd(9, .{ .List = .{ .SubMessage = {} } }),
+        .start_time_unix_nano = fd(2, .{ .FixedInt = .I64 }),
+        .time_unix_nano = fd(3, .{ .FixedInt = .I64 }),
+        .count = fd(4, .{ .FixedInt = .I64 }),
+        .sum = fd(5, .{ .FixedInt = .I64 }),
+        .bucket_counts = fd(6, .{ .PackedList = .{ .FixedInt = .I64 } }),
+        .explicit_bounds = fd(7, .{ .PackedList = .{ .FixedInt = .I64 } }),
+        .exemplars = fd(8, .{ .List = .{ .SubMessage = {} } }),
+        .flags = fd(10, .{ .Varint = .Simple }),
+        .min = fd(11, .{ .FixedInt = .I64 }),
+        .max = fd(12, .{ .FixedInt = .I64 }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ExponentialHistogramDataPoint = struct {
+    attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    start_time_unix_nano: u64 = 0,
+    time_unix_nano: u64 = 0,
+    count: u64 = 0,
+    sum: ?f64 = null,
+    scale: i32 = 0,
+    zero_count: u64 = 0,
+    positive: ?Buckets = null,
+    negative: ?Buckets = null,
+    flags: u32 = 0,
+    exemplars: ArrayList(Exemplar),
+    min: ?f64 = null,
+    max: ?f64 = null,
+    zero_threshold: f64 = 0,
+
+    pub const _desc_table = .{
+        .attributes = fd(1, .{ .List = .{ .SubMessage = {} } }),
+        .start_time_unix_nano = fd(2, .{ .FixedInt = .I64 }),
+        .time_unix_nano = fd(3, .{ .FixedInt = .I64 }),
+        .count = fd(4, .{ .FixedInt = .I64 }),
+        .sum = fd(5, .{ .FixedInt = .I64 }),
+        .scale = fd(6, .{ .Varint = .ZigZagOptimized }),
+        .zero_count = fd(7, .{ .FixedInt = .I64 }),
+        .positive = fd(8, .{ .SubMessage = {} }),
+        .negative = fd(9, .{ .SubMessage = {} }),
+        .flags = fd(10, .{ .Varint = .Simple }),
+        .exemplars = fd(11, .{ .List = .{ .SubMessage = {} } }),
+        .min = fd(12, .{ .FixedInt = .I64 }),
+        .max = fd(13, .{ .FixedInt = .I64 }),
+        .zero_threshold = fd(14, .{ .FixedInt = .I64 }),
+    };
+
+    pub const Buckets = struct {
+        offset: i32 = 0,
+        bucket_counts: ArrayList(u64),
+
+        pub const _desc_table = .{
+            .offset = fd(1, .{ .Varint = .ZigZagOptimized }),
+            .bucket_counts = fd(2, .{ .PackedList = .{ .Varint = .Simple } }),
+        };
+
+        pub usingnamespace protobuf.MessageMixins(@This());
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const SummaryDataPoint = struct {
+    attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    start_time_unix_nano: u64 = 0,
+    time_unix_nano: u64 = 0,
+    count: u64 = 0,
+    sum: f64 = 0,
+    quantile_values: ArrayList(ValueAtQuantile),
+    flags: u32 = 0,
+
+    pub const _desc_table = .{
+        .attributes = fd(7, .{ .List = .{ .SubMessage = {} } }),
+        .start_time_unix_nano = fd(2, .{ .FixedInt = .I64 }),
+        .time_unix_nano = fd(3, .{ .FixedInt = .I64 }),
+        .count = fd(4, .{ .FixedInt = .I64 }),
+        .sum = fd(5, .{ .FixedInt = .I64 }),
+        .quantile_values = fd(6, .{ .List = .{ .SubMessage = {} } }),
+        .flags = fd(8, .{ .Varint = .Simple }),
+    };
+
+    pub const ValueAtQuantile = struct {
+        quantile: f64 = 0,
+        value: f64 = 0,
+
+        pub const _desc_table = .{
+            .quantile = fd(1, .{ .FixedInt = .I64 }),
+            .value = fd(2, .{ .FixedInt = .I64 }),
+        };
+
+        pub usingnamespace protobuf.MessageMixins(@This());
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Exemplar = struct {
+    filtered_attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    time_unix_nano: u64 = 0,
+    span_id: ManagedString = .Empty,
+    trace_id: ManagedString = .Empty,
+    value: ?value_union,
+
+    pub const _value_case = enum {
+        as_double,
+        as_int,
+    };
+    pub const value_union = union(_value_case) {
+        as_double: f64,
+        as_int: i64,
+        pub const _union_desc = .{
+            .as_double = fd(3, .{ .FixedInt = .I64 }),
+            .as_int = fd(6, .{ .FixedInt = .I64 }),
+        };
+    };
+
+    pub const _desc_table = .{
+        .filtered_attributes = fd(7, .{ .List = .{ .SubMessage = {} } }),
+        .time_unix_nano = fd(2, .{ .FixedInt = .I64 }),
+        .span_id = fd(4, .Bytes),
+        .trace_id = fd(5, .Bytes),
+        .value = fd(null, .{ .OneOf = value_union }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/profiles/v1development.pb.zig

@@ -0,0 +1,241 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.profiles.v1development
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.common.v1
+const opentelemetry_proto_common_v1 = @import("../common/v1.pb.zig");
+/// import package opentelemetry.proto.resource.v1
+const opentelemetry_proto_resource_v1 = @import("../resource/v1.pb.zig");
+
+pub const AggregationTemporality = enum(i32) {
+    AGGREGATION_TEMPORALITY_UNSPECIFIED = 0,
+    AGGREGATION_TEMPORALITY_DELTA = 1,
+    AGGREGATION_TEMPORALITY_CUMULATIVE = 2,
+    _,
+};
+
+pub const ProfilesData = struct {
+    resource_profiles: ArrayList(ResourceProfiles),
+
+    pub const _desc_table = .{
+        .resource_profiles = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ResourceProfiles = struct {
+    resource: ?opentelemetry_proto_resource_v1.Resource = null,
+    scope_profiles: ArrayList(ScopeProfiles),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .resource = fd(1, .{ .SubMessage = {} }),
+        .scope_profiles = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ScopeProfiles = struct {
+    scope: ?opentelemetry_proto_common_v1.InstrumentationScope = null,
+    profiles: ArrayList(Profile),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .scope = fd(1, .{ .SubMessage = {} }),
+        .profiles = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Profile = struct {
+    sample_type: ArrayList(ValueType),
+    sample: ArrayList(Sample),
+    mapping_table: ArrayList(Mapping),
+    location_table: ArrayList(Location),
+    location_indices: ArrayList(i32),
+    function_table: ArrayList(Function),
+    attribute_table: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    attribute_units: ArrayList(AttributeUnit),
+    link_table: ArrayList(Link),
+    string_table: ArrayList(ManagedString),
+    time_nanos: i64 = 0,
+    duration_nanos: i64 = 0,
+    period_type: ?ValueType = null,
+    period: i64 = 0,
+    comment_strindices: ArrayList(i32),
+    default_sample_type_index: i32 = 0,
+    profile_id: ManagedString = .Empty,
+    dropped_attributes_count: u32 = 0,
+    original_payload_format: ManagedString = .Empty,
+    original_payload: ManagedString = .Empty,
+    attribute_indices: ArrayList(i32),
+
+    pub const _desc_table = .{
+        .sample_type = fd(1, .{ .List = .{ .SubMessage = {} } }),
+        .sample = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .mapping_table = fd(3, .{ .List = .{ .SubMessage = {} } }),
+        .location_table = fd(4, .{ .List = .{ .SubMessage = {} } }),
+        .location_indices = fd(5, .{ .PackedList = .{ .Varint = .Simple } }),
+        .function_table = fd(6, .{ .List = .{ .SubMessage = {} } }),
+        .attribute_table = fd(7, .{ .List = .{ .SubMessage = {} } }),
+        .attribute_units = fd(8, .{ .List = .{ .SubMessage = {} } }),
+        .link_table = fd(9, .{ .List = .{ .SubMessage = {} } }),
+        .string_table = fd(10, .{ .List = .String }),
+        .time_nanos = fd(11, .{ .Varint = .Simple }),
+        .duration_nanos = fd(12, .{ .Varint = .Simple }),
+        .period_type = fd(13, .{ .SubMessage = {} }),
+        .period = fd(14, .{ .Varint = .Simple }),
+        .comment_strindices = fd(15, .{ .PackedList = .{ .Varint = .Simple } }),
+        .default_sample_type_index = fd(16, .{ .Varint = .Simple }),
+        .profile_id = fd(17, .Bytes),
+        .dropped_attributes_count = fd(19, .{ .Varint = .Simple }),
+        .original_payload_format = fd(20, .String),
+        .original_payload = fd(21, .Bytes),
+        .attribute_indices = fd(22, .{ .PackedList = .{ .Varint = .Simple } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const AttributeUnit = struct {
+    attribute_key_strindex: i32 = 0,
+    unit_strindex: i32 = 0,
+
+    pub const _desc_table = .{
+        .attribute_key_strindex = fd(1, .{ .Varint = .Simple }),
+        .unit_strindex = fd(2, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Link = struct {
+    trace_id: ManagedString = .Empty,
+    span_id: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .trace_id = fd(1, .Bytes),
+        .span_id = fd(2, .Bytes),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ValueType = struct {
+    type_strindex: i32 = 0,
+    unit_strindex: i32 = 0,
+    aggregation_temporality: AggregationTemporality = @enumFromInt(0),
+
+    pub const _desc_table = .{
+        .type_strindex = fd(1, .{ .Varint = .Simple }),
+        .unit_strindex = fd(2, .{ .Varint = .Simple }),
+        .aggregation_temporality = fd(3, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Sample = struct {
+    locations_start_index: i32 = 0,
+    locations_length: i32 = 0,
+    value: ArrayList(i64),
+    attribute_indices: ArrayList(i32),
+    link_index: ?i32 = null,
+    timestamps_unix_nano: ArrayList(u64),
+
+    pub const _desc_table = .{
+        .locations_start_index = fd(1, .{ .Varint = .Simple }),
+        .locations_length = fd(2, .{ .Varint = .Simple }),
+        .value = fd(3, .{ .PackedList = .{ .Varint = .Simple } }),
+        .attribute_indices = fd(4, .{ .PackedList = .{ .Varint = .Simple } }),
+        .link_index = fd(5, .{ .Varint = .Simple }),
+        .timestamps_unix_nano = fd(6, .{ .PackedList = .{ .Varint = .Simple } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Mapping = struct {
+    memory_start: u64 = 0,
+    memory_limit: u64 = 0,
+    file_offset: u64 = 0,
+    filename_strindex: i32 = 0,
+    attribute_indices: ArrayList(i32),
+    has_functions: bool = false,
+    has_filenames: bool = false,
+    has_line_numbers: bool = false,
+    has_inline_frames: bool = false,
+
+    pub const _desc_table = .{
+        .memory_start = fd(1, .{ .Varint = .Simple }),
+        .memory_limit = fd(2, .{ .Varint = .Simple }),
+        .file_offset = fd(3, .{ .Varint = .Simple }),
+        .filename_strindex = fd(4, .{ .Varint = .Simple }),
+        .attribute_indices = fd(5, .{ .PackedList = .{ .Varint = .Simple } }),
+        .has_functions = fd(6, .{ .Varint = .Simple }),
+        .has_filenames = fd(7, .{ .Varint = .Simple }),
+        .has_line_numbers = fd(8, .{ .Varint = .Simple }),
+        .has_inline_frames = fd(9, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Location = struct {
+    mapping_index: ?i32 = null,
+    address: u64 = 0,
+    line: ArrayList(Line),
+    is_folded: bool = false,
+    attribute_indices: ArrayList(i32),
+
+    pub const _desc_table = .{
+        .mapping_index = fd(1, .{ .Varint = .Simple }),
+        .address = fd(2, .{ .Varint = .Simple }),
+        .line = fd(3, .{ .List = .{ .SubMessage = {} } }),
+        .is_folded = fd(4, .{ .Varint = .Simple }),
+        .attribute_indices = fd(5, .{ .PackedList = .{ .Varint = .Simple } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Line = struct {
+    function_index: i32 = 0,
+    line: i64 = 0,
+    column: i64 = 0,
+
+    pub const _desc_table = .{
+        .function_index = fd(1, .{ .Varint = .Simple }),
+        .line = fd(2, .{ .Varint = .Simple }),
+        .column = fd(3, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Function = struct {
+    name_strindex: i32 = 0,
+    system_name_strindex: i32 = 0,
+    filename_strindex: i32 = 0,
+    start_line: i64 = 0,
+
+    pub const _desc_table = .{
+        .name_strindex = fd(1, .{ .Varint = .Simple }),
+        .system_name_strindex = fd(2, .{ .Varint = .Simple }),
+        .filename_strindex = fd(3, .{ .Varint = .Simple }),
+        .start_line = fd(4, .{ .Varint = .Simple }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/resource/v1.pb.zig

@@ -0,0 +1,26 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.resource.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.common.v1
+const opentelemetry_proto_common_v1 = @import("../common/v1.pb.zig");
+
+pub const Resource = struct {
+    attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    dropped_attributes_count: u32 = 0,
+    entity_refs: ArrayList(opentelemetry_proto_common_v1.EntityRef),
+
+    pub const _desc_table = .{
+        .attributes = fd(1, .{ .List = .{ .SubMessage = {} } }),
+        .dropped_attributes_count = fd(2, .{ .Varint = .Simple }),
+        .entity_refs = fd(3, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};

src/opentelemetry/proto/trace/v1.pb.zig

@@ -0,0 +1,165 @@
+// Code generated by protoc-gen-zig
+///! package opentelemetry.proto.trace.v1
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
+
+const protobuf = @import("protobuf");
+const ManagedString = protobuf.ManagedString;
+const fd = protobuf.fd;
+const ManagedStruct = protobuf.ManagedStruct;
+/// import package opentelemetry.proto.common.v1
+const opentelemetry_proto_common_v1 = @import("../common/v1.pb.zig");
+/// import package opentelemetry.proto.resource.v1
+const opentelemetry_proto_resource_v1 = @import("../resource/v1.pb.zig");
+
+pub const SpanFlags = enum(i32) {
+    SPAN_FLAGS_DO_NOT_USE = 0,
+    SPAN_FLAGS_TRACE_FLAGS_MASK = 255,
+    SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK = 256,
+    SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK = 512,
+    _,
+};
+
+pub const TracesData = struct {
+    resource_spans: ArrayList(ResourceSpans),
+
+    pub const _desc_table = .{
+        .resource_spans = fd(1, .{ .List = .{ .SubMessage = {} } }),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ResourceSpans = struct {
+    resource: ?opentelemetry_proto_resource_v1.Resource = null,
+    scope_spans: ArrayList(ScopeSpans),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .resource = fd(1, .{ .SubMessage = {} }),
+        .scope_spans = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const ScopeSpans = struct {
+    scope: ?opentelemetry_proto_common_v1.InstrumentationScope = null,
+    spans: ArrayList(Span),
+    schema_url: ManagedString = .Empty,
+
+    pub const _desc_table = .{
+        .scope = fd(1, .{ .SubMessage = {} }),
+        .spans = fd(2, .{ .List = .{ .SubMessage = {} } }),
+        .schema_url = fd(3, .String),
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Span = struct {
+    trace_id: ManagedString = .Empty,
+    span_id: ManagedString = .Empty,
+    trace_state: ManagedString = .Empty,
+    parent_span_id: ManagedString = .Empty,
+    flags: u32 = 0,
+    name: ManagedString = .Empty,
+    kind: SpanKind = @enumFromInt(0),
+    start_time_unix_nano: u64 = 0,
+    end_time_unix_nano: u64 = 0,
+    attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+    dropped_attributes_count: u32 = 0,
+    events: ArrayList(Event),
+    dropped_events_count: u32 = 0,
+    links: ArrayList(Link),
+    dropped_links_count: u32 = 0,
+    status: ?Status = null,
+
+    pub const _desc_table = .{
+        .trace_id = fd(1, .Bytes),
+        .span_id = fd(2, .Bytes),
+        .trace_state = fd(3, .String),
+        .parent_span_id = fd(4, .Bytes),
+        .flags = fd(16, .{ .FixedInt = .I32 }),
+        .name = fd(5, .String),
+        .kind = fd(6, .{ .Varint = .Simple }),
+        .start_time_unix_nano = fd(7, .{ .FixedInt = .I64 }),
+        .end_time_unix_nano = fd(8, .{ .FixedInt = .I64 }),
+        .attributes = fd(9, .{ .List = .{ .SubMessage = {} } }),
+        .dropped_attributes_count = fd(10, .{ .Varint = .Simple }),
+        .events = fd(11, .{ .List = .{ .SubMessage = {} } }),
+        .dropped_events_count = fd(12, .{ .Varint = .Simple }),
+        .links = fd(13, .{ .List = .{ .SubMessage = {} } }),
+        .dropped_links_count = fd(14, .{ .Varint = .Simple }),
+        .status = fd(15, .{ .SubMessage = {} }),
+    };
+
+    pub const SpanKind = enum(i32) {
+        SPAN_KIND_UNSPECIFIED = 0,
+        SPAN_KIND_INTERNAL = 1,
+        SPAN_KIND_SERVER = 2,
+        SPAN_KIND_CLIENT = 3,
+        SPAN_KIND_PRODUCER = 4,
+        SPAN_KIND_CONSUMER = 5,
+        _,
+    };
+
+    pub const Event = struct {
+        time_unix_nano: u64 = 0,
+        name: ManagedString = .Empty,
+        attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+        dropped_attributes_count: u32 = 0,
+
+        pub const _desc_table = .{
+            .time_unix_nano = fd(1, .{ .FixedInt = .I64 }),
+            .name = fd(2, .String),
+            .attributes = fd(3, .{ .List = .{ .SubMessage = {} } }),
+            .dropped_attributes_count = fd(4, .{ .Varint = .Simple }),
+        };
+
+        pub usingnamespace protobuf.MessageMixins(@This());
+    };
+
+    pub const Link = struct {
+        trace_id: ManagedString = .Empty,
+        span_id: ManagedString = .Empty,
+        trace_state: ManagedString = .Empty,
+        attributes: ArrayList(opentelemetry_proto_common_v1.KeyValue),
+        dropped_attributes_count: u32 = 0,
+        flags: u32 = 0,
+
+        pub const _desc_table = .{
+            .trace_id = fd(1, .Bytes),
+            .span_id = fd(2, .Bytes),
+            .trace_state = fd(3, .String),
+            .attributes = fd(4, .{ .List = .{ .SubMessage = {} } }),
+            .dropped_attributes_count = fd(5, .{ .Varint = .Simple }),
+            .flags = fd(6, .{ .FixedInt = .I32 }),
+        };
+
+        pub usingnamespace protobuf.MessageMixins(@This());
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};
+
+pub const Status = struct {
+    message: ManagedString = .Empty,
+    code: StatusCode = @enumFromInt(0),
+
+    pub const _desc_table = .{
+        .message = fd(2, .String),
+        .code = fd(3, .{ .Varint = .Simple }),
+    };
+
+    pub const StatusCode = enum(i32) {
+        STATUS_CODE_UNSET = 0,
+        STATUS_CODE_OK = 1,
+        STATUS_CODE_ERROR = 2,
+        _,
+    };
+
+    pub usingnamespace protobuf.MessageMixins(@This());
+};