code: def raise_if_myst_is_not_available():
      if not is_myst_available():
          raise ImportError(
              "The MyST Markdown format requires python >= 3.6 and markdown-it-py~=1.0"
          )
  
imports: import json
  import re
  import warnings
  from textwrap import dedent
  import nbformat
  import yaml
  from .cell_to_text import three_backticks_or_more
label_desc: Use image node_id 2 for calling a global function with example usage: raise_if_myst_is_not_available() without return types