parameters: (self, item)
docstring: Push an item onto the stack.
docstring_summary: Push an item onto the stack.
docstring_tokens: Push an item onto the stack .
function: def push(self, item):
          """
          Push an item onto the stack.
  
          """
          self._stack.append(item)
function_tokens: def push ( self , item ) : self . _stack . append ( item )