registerGlobalTextMapPropagator function
Implementation
void registerGlobalTextMapPropagator(api.TextMapPropagator textMapPropagator) {
if (_textMapPropagator != _noopTextMapPropagator) {
throw StateError(
'A global TextMapPropagator has already been created. '
'registerGlobalTextMapPropagator must be called only once before any '
'calls to the getter globalTextMapPropagator.',
);
}
_textMapPropagator = textMapPropagator;
}