def __init__(self, name, firstlineno):
        """
        Parameters
        ----------
        code :
            The function's code object.
        """
        self._co_name = name
        self._co_firstlineno = firstlineno
        self.first_stmt_line = None

        Parameters
        ----------
        code :
            The function's code object.
        
numba/misc/firstlinefinder.py