import { Entity, IdentifiableEntity, Mutation } from '../../api/types';
import { EntityFieldKeyDefinition } from '../fieldReferences';
import AEntityUpdateRequest from './AEntityUpdateRequest';
import { EntityResponseData } from '../../api/generate/generateEntityQuery';
export default class EntitySetFileValueRequest<T extends Entity> extends AEntityUpdateRequest<T> {
    private sourceKey;
    private updateKey;
    private file;
    constructor(fieldDef: EntityFieldKeyDefinition, file: File);
    /**
     * Reads a file as a binary string, that can be accessed through a promise
     *
     * @returns {Promise<string>}
     */
    private readFileAsBinaryString;
    /**
     * @param entity
     * @param updateEntity
     * @returns {Promise<string>} promise containing binary file string
     */
    performLocalUpdate(entity: T, updateEntity: (newEntity: any) => void): Promise<object> | void;
    /**
     * @param entity
     * @param updateMutation
     * @returns {Promise<Object>} promise containing apollo response
     */
    performGraphqlUpdate(entity: IdentifiableEntity, updateMutation: Mutation): Promise<EntityResponseData<T>>;
}