# Functions
ParseSampled parses the value of the X-B3-Sampled header.
ParseSpanID parses the value of the X-B3-SpanId or X-B3-ParentSpanId headers.
ParseTraceID parses the value of the X-B3-TraceId header.
# Constants
B3 headers that OpenCensus understands.
B3 headers that OpenCensus understands.
B3 headers that OpenCensus understands.
# Structs
HTTPFormat implements propagation.HTTPFormat to propagate traces in HTTP headers in B3 propagation format.