[dist4]message_header // num_bytes
[u4]0 // version
[u4]0 // interface ID
[u4]8 // name
[u4]0 // flags
[u4]0 // padding
[anchr]message_header
[dist4]method8_params // num_bytes
[u4]0 // version
[dist8]param0_ptr // param0
[anchr]method8_params
[anchr]param0_ptr
[dist4]array_param // num_bytes
[u4]0x20000001 // num_elements: The corresponding array size should be
// 0x20000001 * 8 + 8 = 0x100000010 which is
// 2^32 + 16 (base-10), while |num_bytes| is a 32-bit
// unsigned integer and its value is 16.
[u8]0
[anchr]array_param