pub unsafe extern "C" fn encode(
dictionary_data: *const uint8_t,
dictionary_len: size_t,
target_data: *const uint8_t,
target_len: size_t,
encoded_data: *mut *mut uint8_t,
encoded_len: *mut size_t,
flags: VCDiffFormatExtensionFlags,
look_for_target_matches: u8,
)