Function SCIPhashmapSetImage 

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