* are typically associated with packed variables. Presently, we assume this
 * set spans all the devices. So, a variable on a `COMPOSITE` will have a local
 * instance on the execute op's device.
 */
bool IsResourceMergeable(Attribute& resource_attr, Attribute& device_attr) {
  return resource_attr &&
         ((resource_attr == device_attr) ||
          (resource_attr.cast<mlir::StringAttr>().getValue().find(