code: def __init__(self, leaf, typ, value, spacing="", start_pos=None):
      assert start_pos is not None
      self.parent = leaf
      self.type = typ
      self.value = value
      self.spacing = spacing
      self.start_pos = start_pos
  
file_path: catboost/contrib/python/parso/py2/parso/python/prefix.py
imports: import re
  from codecs import BOM_UTF8
  from parso.python.tokenize import group
label_desc: Use image node_id 1 to create a new PrefixPart object from inherited base classes: object with example: obj = PrefixPart(leaf, typ, value, spacing, start_pos)