We should try and reduce the content in the header file, as it is exposed to anything that includes it.

• mt_continue_should_break() moves intocompressor.c
• Thedecompress_type enum moves intodecompressor.c
• Replace#pragma once (not used for any other modules or non-vendored code) with guard defines
• Use angle-bracket includes forz{std,dict}.h
• Add azstddict.h header file to contain the definition of theZstdDict struct
• Move theZstdCompressor struct tocompressor.c (likewise for decompressor)
• MakePyModuleDef _zstdmodule static

A

• Issue:Implement PEP 784 - Adding Zstandard to the Python standard library #132983