def find_max_rad_npnp(self):
max_rad = <NUM_LIT:0><EOL>max_npnp = <NUM_LIT:0><EOL>for res, _ in self.items():<EOL><INDENT>if res != '<STR_LIT>':<EOL><INDENT>for _, ff_params in self[res].items():<EOL><INDENT>if max_rad < ff_params[<NUM_LIT:1>]:<EOL><INDENT>max_rad = ff_params[<NUM_LIT:1>]<EOL><DEDENT>if max_npnp < ff_params[<NUM_LIT:4>]:<EOL><INDENT>max_npnp = ff_params[<NUM_LIT:4>]<EOL><DEDENT><DEDENT><DEDENT><DEDENT>return max_rad, max_npnp<EOL>
Finds the maximum radius and npnp in the force field.

        Returns
        -------
        (max_rad, max_npnp): (float, float)
            Maximum radius and npnp distance in the loaded force field.