Function gdnative_sys::godot_nativescript_register_method

pub unsafe extern "C" fn godot_nativescript_register_method(
    p_gdnative_handle: *mut c_void, 
    p_name: *const c_char, 
    p_function_name: *const c_char, 
    p_attr: godot_method_attributes, 
    p_method: godot_instance_method
)