namespace OpenTelemetry.Internal { internal sealed class OpenTelemetryApiEventSource : EventSource { public static readonly OpenTelemetryApiEventSource Log; public void ActivityContextExtractException(string format, Exception ex); public void BaggageExtractException(string format, Exception ex); public void TracestateExtractException(Exception ex); public void TracestateKeyIsInvalid(ReadOnlySpan<char> key); public void TracestateValueIsInvalid(ReadOnlySpan<char> value); public void TooManyItemsInTracestate(); public void TracestateKeyIsInvalid(string key); public void TracestateValueIsInvalid(string value); public void TracestateExtractError(string error); public void FailedToExtractActivityContext(string format, string exception); public void FailedToInjectActivityContext(string format, string error); public void FailedToExtractBaggage(string format, string exception); public void FailedToInjectBaggage(string format, string error); public OpenTelemetryApiEventSource(); } }