code: def _partially_consume_prefix(
      self, prefix: str, column: int
  ) -> Tuple[str, str]:
      lines: List[str] = []
      current_line = ""
      current_column = 0
      wait_for_nl = False
      for char in prefix:
          current_line += char
          if wait_for_nl:
              if char == "\n":
                  if current_line.strip() and current_column < column:
                      res = "".join(lines)
                      return res, prefix[len(res) :]
  
                  lines.append(current_line)
                  current_line = ""
                  current_column = 0
                  wait_for_nl = False
          elif char in " \t":
              current_column += 1
          elif char == "\n":
              # unexpected empty line
              current_column = 0
          elif char == "\f":
              current_column = 0
          else:
              # indent is finished
              wait_for_nl = True
      return "".join(lines), current_line
  
imports: import io
  import logging
  import os
  import pkgutil
  import sys
  from contextlib import contextmanager
  from dataclasses import dataclass, field
  from logging import Logger
  from typing import IO, Any, Iterable, Iterator, List, Optional, Tuple, Union, cast
  from blib2to3.pgen2.grammar import Grammar
  from blib2to3.pgen2.tokenize import GoodTokenInfo
  from blib2to3.pytree import NL
  from .None import grammar, parse, pgen, token, tokenize
label_desc: Use image node_id 7 for calling the Driver obj's underlying member method code with example usage: obj._partially_consume_prefix(prefix, column) and returns: str,  current_line, res,  prefix