parameters: (self, op_id)
return_statement: return self._ops[op_id]
docstring: Get an op by its index.
docstring_summary: Get an op by its index.
docstring_tokens: Get an op by its index .
function: def op(self, op_id):
      """Get an op by its index."""
      return self._ops[op_id]
function_tokens: def op ( self , op_id ) : return self . _ops [ op_id ]