code: def get_function_contents_by_name(lines: List[str], name: str):
      """
      Extracts a function from `lines` of segmented source code with the name `name`.
  
      Args:
          lines (`List[str]`):
              Source code of a script seperated by line.
          name (`str`):
              The name of the function to extract. Should be either `training_function` or `main`
      """
      if name != "training_function" and name != "main":
          raise ValueError(
              f"Incorrect function name passed: {name}, choose either 'main' or 'training_function'"
          )
      good_lines, found_start = [], False
      for line in lines:
          if not found_start and f"def {name}" in line:
              found_start = True
              good_lines.append(line)
              continue
          if found_start:
              if name == "training_function" and "def main" in line:
                  return good_lines
              if name == "main" and "if __name__" in line:
                  return good_lines
              good_lines.append(line)
  
imports: import os
  from typing import List
label_desc: Use image node_id 1 for calling a global function with example usage: get_function_contents_by_name(lines, name) and returns: good_lines, good_lines