class_docstr: The base class for nodes and leaves.
class_docstr_tok: ["The","base","class","for","nodes","and","leaves","."]
docstr: Returns the start_pos of the prefix. This means basically it returns
  the end_pos of the last prefix. The `get_start_pos_of_prefix()` of the
  prefix `+` in `2 + 1` would be `(1, 1)`, while the start_pos is
  `(1, 2)`.
  
  :return tuple of int: (line, column)
code: def get_start_pos_of_prefix(self):
      """
      Returns the start_pos of the prefix. This means basically it returns
      the end_pos of the last prefix. The `get_start_pos_of_prefix()` of the
      prefix `+` in `2 + 1` would be `(1, 1)`, while the start_pos is
      `(1, 2)`.
  
      :return tuple of int: (line, column)
      """
  
imports: from abc import abstractmethod, abstractproperty
  from typing import List, Optional, Tuple, Union
  from parso.utils import split_lines
label_desc: Use image node_id 8 for calling the NodeOrLeaf obj's underlying member method code with example usage: obj.get_start_pos_of_prefix() without return types