# Functions
Client returns a new client middleware for OpenTelemetry.
NewTracer create tracer instance.
Server returns a new server middleware for OpenTelemetry.
SpanID returns a spanid valuer.
TraceID returns a traceid valuer.
WithPropagator with tracer propagator.
WithTracerProvider with tracer provider.
# Structs
ClientHandler is tracing ClientHandler.
Metadata is tracing metadata propagator.
Tracer is otel span tracer.
# Type aliases
Option is tracing option.