type Member
import bend-trace-context@0.2.0.0/trace_context.bend as TraceContextimport Base
2069# Where reading the current member stands: before its key, with only optional
2070# whitespace so far; inside its key; or inside its value. Characters read are
2071# kept most recent first, so each one costs a single step.
2072type Member is Data:
2073 Blank{}
2074 InKey{text: String}
2075 InValue{key: String, text: String}