createDefaultApolloExternalFunctionMapper method
The default ApolloExternalFunctionMapper for this target language runner.
Useful to mimic the behavior of the target language runtime.
Implementation
ApolloExternalFunctionMapper? createDefaultApolloExternalFunctionMapper() {
var externalFunctionMapper = ApolloExternalFunctionMapper();
externalFunctionMapper.mapExternalFunction1(ASTTypeVoid.instance, 'print',
ASTTypeObject.instance, 'o', (o) => externalPrintFunction(o));
return externalFunctionMapper;
}