TraceContext.Forward.carrier: def of bend-trace-context@0.2.0.0
Import: import bend-trace-context@0.2.0.0/trace_context.bend as TraceContext
Lines 3349-3353 of bend-trace-context@0.2.0.0/trace_context.bend: https://jend.leeeet.dev/read.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&start_line=3349&end_line=3353

import Base

# The carrier with its context fields replaced by a received pair: the
# traceparent value, and the tracestate fields joined into one value, left
# out when empty.
def Forward.carrier(carrier: List<&2, Header>, traceparent: String, tracestate: List<&2, String>) -> List<&2, Header>:
  Carrier.replace(carrier, Carrier.context_fields(traceparent, Text.joined(tracestate)))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=Carrier.context_fields
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=Carrier.replace
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=Header
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=Text.joined