/**
* Retrieves attribute value by key.
*
* <p>Java binding of the MPI operation {@code MPI_TYPE_GET_ATTR}.
*
* @param keyval attribute key
* @return attribute value or null if no attribute is associated with the key.
* @throws MPIException
*/
public Object getAttr(int keyval) throws MPIException {
MPI.check();
Object obj = getAttr(handle, keyval);
return obj instanceof byte[] ? MPI.attrGet((byte[]) obj) : obj;
}
