import type { UpdateCommandInput, UpdateCommandOutput } from '@aws-sdk/lib-dynamodb';
import { $sentArgs } from '../../../entity/constants.js';
import type { Entity, EntitySendableAction } from '../../../entity/entity.js';
import type { FormattedItem } from '../../../entity/index.js';
import { EntityAction } from '../../../entity/index.js';
import type { AllNewReturnValuesOption, AllOldReturnValuesOption, NoneReturnValuesOption, UpdatedNewReturnValuesOption, UpdatedOldReturnValuesOption } from '../../../options/returnValues.js';
import type { DocumentClientOptions } from '../../../types/documentClientOptions.js';
import type { Merge } from '../../../types/merge.js';
import { $item, $options } from './constants.js';
import type { UpdateItemOptions } from './options.js';
import type { UpdateItemInput } from './types.js';
export type ReturnedAttributes<ENTITY extends Entity, OPTIONS extends UpdateItemOptions<ENTITY>> = OPTIONS['returnValues'] extends NoneReturnValuesOption ? undefined : OPTIONS['returnValues'] extends UpdatedOldReturnValuesOption | UpdatedNewReturnValuesOption ? FormattedItem<ENTITY, {
    partial: OPTIONS['returnValues'] extends UpdatedOldReturnValuesOption | UpdatedNewReturnValuesOption ? true : false;
}> | undefined : OPTIONS['returnValues'] extends AllNewReturnValuesOption | AllOldReturnValuesOption ? FormattedItem<ENTITY> | undefined : never;
export type UpdateItemResponse<ENTITY extends Entity, OPTIONS extends UpdateItemOptions<ENTITY> = UpdateItemOptions<ENTITY>> = Merge<Omit<UpdateCommandOutput, 'Attributes'>, {
    Attributes?: ReturnedAttributes<ENTITY, OPTIONS>;
    ToolboxItem: UpdateItemInput<ENTITY, {
        filled: true;
    }>;
}>;
export declare class UpdateItemCommand<ENTITY extends Entity = Entity, OPTIONS extends UpdateItemOptions<ENTITY> = UpdateItemOptions<ENTITY>> extends EntityAction<ENTITY> implements EntitySendableAction<ENTITY> {
    static actionName: "updateItem";
    [$item]?: UpdateItemInput<ENTITY>;
    [$options]: OPTIONS;
    constructor(entity: ENTITY, item?: UpdateItemInput<ENTITY>, options?: OPTIONS);
    item(nextItem: UpdateItemInput<ENTITY>): UpdateItemCommand<ENTITY, OPTIONS>;
    options<NEXT_OPTIONS extends UpdateItemOptions<ENTITY>>(nextOptions: NEXT_OPTIONS | ((prevOptions: OPTIONS) => NEXT_OPTIONS)): UpdateItemCommand<ENTITY, NEXT_OPTIONS>;
    [$sentArgs](): [UpdateItemInput<ENTITY>, UpdateItemOptions<ENTITY>];
    params(): UpdateCommandInput & {
        ToolboxItem: UpdateItemInput<ENTITY, {
            filled: true;
        }>;
    };
    send(documentClientOptions?: DocumentClientOptions): Promise<UpdateItemResponse<ENTITY, OPTIONS>>;
}