pub unsafe extern "C" fn coap_new_endpoint(
context: *mut coap_context_t,
listen_addr: *const coap_address_t,
proto: coap_proto_t,
) -> *mut coap_endpoint_t
pub unsafe extern "C" fn coap_new_endpoint(
context: *mut coap_context_t,
listen_addr: *const coap_address_t,
proto: coap_proto_t,
) -> *mut coap_endpoint_t