import {
  KoconutYieldable,
  KoconutOpener,
  Selector,
  Processor,
} from '../module';
export declare class KoconutPrimitive<DataType>
  implements KoconutYieldable<DataType>
{
  protected data: DataType | null;
  protected prevYieldable?: KoconutYieldable<any>;
  protected processor?: () => Promise<DataType>;
  protected setPrevYieldable(
    prevYieldable: KoconutYieldable<any>,
  ): KoconutOpener<DataType>;
  protected setProcessor(
    processor: () => Promise<DataType>,
  ): KoconutOpener<DataType>;
  protected validate(data: DataType | null): Promise<void>;
  constructor(data?: DataType | null);
  protected isValidated: boolean;
  /**
   * Processes all the chained objects ane returns ```Promise<void>```.
   *
   * @since 1.0.10
   *
   * @category Processor
   *
   * @example
   * ```typescript
   * import { KoconutArray } from 'koconut'
   *
   * const mainProcess = async () => {
   *   const koconutNumbers = KoconutArray.of(1,2,3,4,5)
   *
   *   await koconutNumbers
   *               .forEach(console.log)
   *               .process()
   *   // ↑ 1 2 3 4 5
   * }
   * mainProcess()
   * ```
   */
  process(): Promise<void>;
  retrieve(): Promise<KoconutPrimitive<DataType>>;
  /**
   * Processes all the chained objects and return the result.
   *
   * @since 1.0.10
   *
   * @category Processor
   *
   * @example
   * ``` typescript
   * import { KoconutArray } from 'koconut'
   *
   * const mainProcess = async () => {
   *   const koconutNumbers = KoconutArray.of(1,2,3,4,5)
   *
   *   const firstNumber = await koconutNumbers
   *                                       .first()
   *                                       .yield()
   *   console.log(firstNumber)
   *   // ↑ 1
   * }
   * mainProcess()
   * ```
   */
  yield(): Promise<DataType>;
  /**
   * Processes all the chained objects and calls the specified function
   * ```block``` with the result value as its argument and returns the final result
   * of the ```block```.
   *
   * @param {SingleInputSingleOutCallback} block A callback function that accepts an argument. The method calls the `block` and returns its result.
   *
   * @since 1.0.10
   *
   * @category Processor
   *
   * @example
   * ``` typescript
   * import { KoconutArray } from 'koconut'
   *
   * const mainProcess = async () => {
   *   const koconutNumbers = KoconutArray.of(1,2,3,4,5)
   *
   *   const firstNumberPlus2 = await koconutNumbers
   *                           .first()
   *                           .let(result => result + 2)
   *   console.log(firstNumber)
   *   // ↑ 3
   * }
   * mainProcess()
   * ```
   */
  let<ReturnType>(block: Selector<DataType, ReturnType>): Promise<ReturnType>;
  /**
   * Processes all the chained objects and calls the specified function
   * ```block``` with the result value as its argument and returns the original result.
   * @param {Processor} block A callback function that accepts an argument.
   *
   * @since 1.0.10
   *
   * @category Processor
   *
   * @example
   * ```typescript
   * import { KoconutArray } from 'koconut'
   *
   * const mainProcess = async () => {
   *   const koconutNumbers = KoconutArray.of(1,2,3,4,5)
   *
   *   const moreNumbers = await koconutNumbers
   *                           .also(result => {
   *                               result.push(6)
   *                               result.push(7)
   *                               result.push(8)
   *                           })
   *   console.log(moreNumbers)
   *   // ↑ [1, 2, 3, 4, 5, 6, 7, 8]
   * }
   * mainProcess()
   * ```
   */
  also(block: Processor<DataType>): Promise<DataType | null>;
}