[dist4]message_header // num_bytes | |
[u4]0 // version | |
[u4]0 // interface ID | |
[u4]18 // name | |
[u4]0 // flags | |
[u4]0 // padding | |
[anchr]message_header | |
[dist4]method18_params // num_bytes | |
[u4]0 // version | |
[u4]0 // param0: Size 0 indicating the inlined union is null. | |
[u4]0 // param0: Tag field ignored. | |
[u8]0 // param0: Payload field ignored. | |
[anchr]method18_params |