//#region src/infra/diagnostic-trace-context.d.ts
type DiagnosticTraceContext = {
  /** W3C trace id, 32 lowercase hex chars. */readonly traceId: string; /** Current span id, 16 lowercase hex chars. */
  readonly spanId?: string; /** Parent span id, 16 lowercase hex chars. */
  readonly parentSpanId?: string; /** W3C trace flags, 2 lowercase hex chars. Defaults to sampled. */
  readonly traceFlags?: string;
};
type DiagnosticTraceContextInput = Partial<DiagnosticTraceContext> & {
  traceparent?: string;
};
/** Returns whether a value is a non-zero W3C trace id. */
declare function isValidDiagnosticTraceId(value: unknown): value is string;
/** Returns whether a value is a non-zero W3C span id. */
declare function isValidDiagnosticSpanId(value: unknown): value is string;
/** Returns whether a value is a valid W3C trace-flags byte. */
declare function isValidDiagnosticTraceFlags(value: unknown): value is string;
/** Parses a W3C `traceparent` header into a normalized diagnostic trace context. */
declare function parseDiagnosticTraceparent(traceparent: string | undefined): DiagnosticTraceContext | undefined;
/** Formats a diagnostic trace context as a W3C `traceparent` header. */
declare function formatDiagnosticTraceparent(context: DiagnosticTraceContext | undefined): string | undefined;
/** Creates a normalized trace context from explicit fields, traceparent, or generated ids. */
declare function createDiagnosticTraceContext(input?: DiagnosticTraceContextInput): DiagnosticTraceContext;
/** Creates a child context that preserves the parent trace id and records the parent span id. */
declare function createChildDiagnosticTraceContext(parent: DiagnosticTraceContext, input?: Omit<DiagnosticTraceContextInput, "traceId" | "traceparent">): DiagnosticTraceContext;
/** Creates a child of the active trace scope, or a new root context when no scope is active. */
declare function createDiagnosticTraceContextFromActiveScope(input?: Omit<DiagnosticTraceContextInput, "traceId" | "traceparent">): DiagnosticTraceContext;
/** Returns an immutable defensive copy of a trace context. */
declare function freezeDiagnosticTraceContext(context: DiagnosticTraceContext): DiagnosticTraceContext;
//#endregion
export { formatDiagnosticTraceparent as a, isValidDiagnosticTraceFlags as c, createDiagnosticTraceContextFromActiveScope as i, isValidDiagnosticTraceId as l, createChildDiagnosticTraceContext as n, freezeDiagnosticTraceContext as o, createDiagnosticTraceContext as r, isValidDiagnosticSpanId as s, DiagnosticTraceContext as t, parseDiagnosticTraceparent as u };