import { GraphOperation, OperationType } from '../types/graph';
/**
 * A definition of the `identity` graph operation.
 * See the [[identityOperation]] documentation to find out more.
 */
export interface IdentityOperation extends GraphOperation<'identity'> {
}
/**
 * An implementation of the [[identityOperation]].
 * See the [[identityOperation]] documentation to find out more.
 */
export declare const IdentityOperationType: OperationType<'identity'>;
/**
 * Creates a new instance of [[identityOperation]]. This operation is used to instruct Muster to
 * return the node unchanged, and that it should not be traversed by Muster. It works similarly
 * to the `identity` function from Lodash.
 */
export declare function identityOperation(): IdentityOperation;
export declare function isIdentityOperation(value: GraphOperation): value is IdentityOperation;