class_docstr: Base API generator class. We derive several subclasses to implement
  the different backends.
class_docstr_tok: ["Base","API","generator","class",".","We","derive","several","subclasses","to","implement","the","different","backends","."]
code: def __init__(self):
      self.lines = []
      self.functions_auto = set()
      self.functions_anno = set()
      self.functions_todo = set()
  
imports: from __future__ import annotations
  import os
  import sys
  import headerparser
  from annotations import parse_anotations
  from OpenGL import GL
label_desc: Use image node_id 1 to create a new ApiGenerator object  with example: obj = ApiGenerator()