class_docstr: Leafs are basically tokens with a better API. Leafs exactly know where they
  were defined and what text preceeds them.
code: def get_code(self, include_prefix=True):
      if include_prefix:
          return self.prefix + self.value
      else:
          return self.value
  
imports: import sys
  from abc import abstractmethod, abstractproperty
  from parso._compatibility import utf8_repr, encoding
  from parso.utils import split_lines
label_desc: Use image node_id 7 for calling the Leaf obj's underlying member method code with example usage: obj.get_code(include_prefix) and returns: unknown, self