# 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.