parameters: (self)
docstring: Returns the first leaf of a node or itself if this is a leaf.
docstring_summary: Returns the first leaf of a node or itself if this is a leaf.
docstring_tokens: Returns the first leaf of a node or itself if this is a leaf .
function: def get_first_leaf(self):
          """
          Returns the first leaf of a node or itself if this is a leaf.
          """
function_tokens: def get_first_leaf ( self ) :