import { MutationOptions } from "apollo-client";
import { ApolloCache } from "apollo-cache";
import { ObjectState, ConflictResolutionData } from "offix-conflicts-client";
import { NormalizedCacheObject } from "apollo-cache-inmemory";
import { InputMapper } from "../../config/ApolloOfflineClientOptions";
/**
 * Convenience interface that specifies a few extra properties found on ApolloCache
 */
export interface ApolloCacheWithData extends ApolloCache<NormalizedCacheObject> {
    config: any;
    data: any;
    optimisticData: any;
}
/**
 * BaseProcessor takes an outgoing GraphQL operation and it checks if it
 * is a mutation on an object we already know about in our local cache
 * If it is, then we need to get the 'base' which is the original object we are trying to mutate
 *
 * We first check for a 'local conflict' which happens when the base from the cache is different from
 * the 'version' the operation is trying to mutate.
 * this can happen when the mutation is in flight but the cache was updated by subscriptions
 *
 * If we have no local conflict, we add the original base to the operation's context,
 * which can then be used for conflict resolution later on.
 */
export declare function getBaseStateFromCache(cache: ApolloCacheWithData, objectState: ObjectState, mutationOptions: MutationOptions, inputMapper?: InputMapper): ConflictResolutionData;