code: def visit_leaf(self, leaf):
      super(PEP8Normalizer, self).visit_leaf(leaf)
      for part in leaf._split_prefix():
          if part.type == "spacing":
              # This part is used for the part call after for.
              break
          self._visit_part(part, part.create_spacing_part(), leaf)
  
      self._analyse_non_prefix(leaf)
      self._visit_part(leaf, part, leaf)
  
      # Cleanup
      self._last_indentation_tos = self._indentation_tos
  
      self._new_statement = leaf.type == "newline"
  
      # TODO does this work? with brackets and stuff?
      if (
          leaf.type == "newline"
          and self._indentation_tos.type == IndentationTypes.BACKSLASH
      ):
          self._indentation_tos = self._indentation_tos.parent
  
      if leaf.value == ":" and leaf.parent.type in _SUITE_INTRODUCERS:
          self._in_suite_introducer = False
      elif leaf.value == "elif":
          self._in_suite_introducer = True
  
      if not self._new_statement:
          self._reset_newlines(part, leaf)
          self._max_blank_lines = 0
  
      self._previous_leaf = leaf
  
      return leaf.value
  
imports: import re
  from contextlib import contextmanager
  from parso.python.errors import ErrorFinder, ErrorFinderConfig
  from parso.normalizer import Rule
  from parso.python.tree import search_ancestor, Flow, Scope
label_desc: Use image node_id 7 for calling the PEP8Normalizer obj's underlying member method code with example usage: obj.visit_leaf(leaf) and returns: leaf