NewStringlike builds a str or bytes object having val as value, depending on st (True->str, False->bytes).

StringlikeVal extracts the string value from a str or bytes typed object.

ExtractorErrorType ..

ExtractorRunner ..

Extractors ..

RegisterExtractor registers a new extractor class.

SetExtractorRunner is called by the generated code to provide an entry point into it, usable by the fixe code.