Function SCIPhashmapSetImageInt 

pub unsafe extern "C" fn SCIPhashmapSetImageInt(
    hashmap: *mut SCIP_HASHMAP,
    origin: *mut c_void,
    image: c_int,
) -> SCIP_RETCODE

sets image for given origin in the hash map, either by modifying existing origin->image pair or by appending a new origin->image pair