def dump_p(self, filename):
warnings.warn(<EOL>"<STR_LIT>",<EOL>DeprecationWarning<EOL>)<EOL>with open(filename, "<STR_LIT:wb>") as f:<EOL><INDENT>pickle.dump(self.palt, f)<EOL><DEDENT>
Dump parameter values (``fit.p``) into file ``filename``.

        ``fit.dump_p(filename)`` saves the best-fit parameter values
        (``fit.p``) from a ``nonlinear_fit`` called ``fit``. These values
        are recovered using
        ``p = nonlinear_fit.load_parameters(filename)``
        where ``p``'s layout is the same as that of ``fit.p``.