class_docstr: Main documentation class
class_docstr_tok: ["Main","documentation","class"]
docstr: Generates the whole markdown file
code: def gen_markdown(self):
      """Generates the whole markdown file"""
      return join([self.gen_body()], "\n").strip()
  
imports: import os
  import yaml
  import re
  import doc_gen_snipets
label_desc: Use image node_id 4 for calling the Documentation obj's underlying member method code with example usage: obj.gen_markdown() and returns: join