rb_define_method (cPart, "swallow", c_swallow, 1);
rb_define_method (cPart, "unswallow", c_unswallow, 1);
rb_define_method (cPart, "swallowed_object",
c_swallowed_object_get, 0);
rb_define_method (cPart, "text", c_text_get, 0);
rb_define_method (cPart, "text=", c_text_set, 1);
rb_define_method (cPart, "swallow", c_swallow, 1);
rb_define_method (cPart, "unswallow", c_unswallow, 1);
rb_define_method (cPart, "swallowed_object",
c_swallowed_object_get, 0);
rb_define_method (cPart, "text", c_text_get, 0);
rb_define_method (cPart, "text=", c_text_set, 1);