parameters: (self)
docstring: Remove all references.
docstring_summary: Remove all references.
docstring_tokens: Remove all references .
function: def free(self):
          """Remove all references."""
          self.left = None
          self.right = None
          self.key = None
          self.value = None
function_tokens: def free ( self ) : self . left = None self . right = None self . key = None self . value = None