declare class Placeholder {
    __PLACEHOLDER__: string;
    constructor();
}
/**
 * A special placeholder value used to specify "gaps" within curried functions,
 * allowing partial application of any combination of arguments, regardless of their positions.
 *
 * @group FP
 */
export declare const __: Placeholder;
type T__ = typeof __;
/**
 * Perform left-to-right function composition.
 *
 * @example
 * ```
 * pipe(
 *     [1, 2, 3, 4],
 *     arr => arr.map(v => v * 2),
 *     arr => arr.map(v => v + 2)
 * )
 * // [4, 6, 8, 10]
 *```
 * @group FP
 */
export declare function pipe<A, B>(value: A, op1: (input: A) => B): B;
export declare function pipe<A, B, C>(value: A, op1: (input: A) => B, op2: (input: B) => C): C;
export declare function pipe<A, B, C, D>(value: A, op1: (input: A) => B, op2: (input: B) => C, op3: (input: C) => D): D;
export declare function pipe<A, B, C, D, E>(value: A, op1: (input: A) => B, op2: (input: B) => C, op3: (input: C) => D, op4: (input: D) => E): E;
export declare function pipe<A, B, C, D, E, F>(value: A, op1: (input: A) => B, op2: (input: B) => C, op3: (input: C) => D, op4: (input: D) => E, op5: (input: E) => F): F;
export declare function pipe<A, B, C, D, E, F, G>(value: A, op1: (input: A) => B, op2: (input: B) => C, op3: (input: C) => D, op4: (input: D) => E, op5: (input: E) => F, op6: (input: F) => G): G;
export declare function pipe<A, B, C, D, E, F, G, H>(value: A, op1: (input: A) => B, op2: (input: B) => C, op3: (input: C) => D, op4: (input: D) => E, op5: (input: E) => F, op6: (input: F) => G, op7: (input: G) => H): H;
export declare function pipe(value: unknown, ...operations: Array<(value: unknown) => unknown>): unknown;
/**
 * Perform right-to-left function composition.
 *
 * @example
 * ```
 * const func = compose(
 *     arr => arr.map(v => v + 2)
 *     (arr: number[]) => arr.map(v => v * 2),
 * )
 * // [4, 6, 8, 10]
 * //
 * ```
 * @group FP
 */
export declare function compose<T1, T2>(op1: (input: T1) => T2): (input: T1) => T2;
export declare function compose<T1, T2, T3>(op2: (input: T2) => T3, op1: (input: T1) => T2): (input: T1) => T3;
export declare function compose<T1, T2, T3, T4>(op3: (input: T3) => T4, op2: (input: T2) => T3, op1: (input: T1) => T2): (input: T1) => T4;
export declare function compose<T1, T2, T3, T4, T5>(op4: (input: T4) => T5, op3: (input: T3) => T4, op2: (input: T2) => T3, op1: (input: T1) => T2): (input: T1) => T5;
export declare function compose<T1, T2, T3, T4, T5, T6>(op5: (input: T5) => T6, op4: (input: T4) => T5, op3: (input: T3) => T4, op2: (input: T2) => T3, op1: (input: T1) => T2): (input: T1) => T6;
export declare function compose<T1, T2, T3, T4, T5, T6, T7>(op6: (input: T6) => T7, op5: (input: T5) => T6, op4: (input: T4) => T5, op3: (input: T3) => T4, op2: (input: T2) => T3, op1: (input: T1) => T2): (input: T1) => T7;
export declare function compose<T1, T2, T3, T4, T5, T6, T7, T8>(op7: (input: T7) => T8, op6: (input: T6) => T7, op5: (input: T5) => T6, op4: (input: T4) => T5, op3: (input: T3) => T4, op2: (input: T2) => T3, op1: (input: T1) => T2): (input: T1) => T8;
export declare function compose(...operations: Array<(value: unknown) => unknown>): (value: unknown) => unknown;
type Curry1<T1, R> = {
    (): Curry1<T1, R>;
    (t1: T1): R;
};
type Curry2<T1, T2, R> = {
    (): Curry2<T1, T2, R>;
    (t1: T1): Curry1<T2, R>;
    (t1: T1, t2: T2): R;
    (t1: T__, t2: T2): Curry1<T1, R>;
    (t1: T1, t2: T__): Curry1<T2, R>;
};
type Curry3<T1, T2, T3, R> = {
    (): Curry3<T1, T2, T3, R>;
    (t1: T1): Curry2<T2, T3, R>;
    (t1: T1, t2: T2): Curry1<T3, R>;
    (t1: T__, t2: T2): Curry2<T1, T3, R>;
    (t1: T1, t2: T__): Curry2<T2, T3, R>;
    (t1: T1, t2: T2, t3: T3): R;
    (t1: T__, t2: T2, t3: T3): Curry1<T1, R>;
    (t1: T1, t2: T__, t3: T3): Curry1<T2, R>;
    (t1: T1, t2: T2, t3: T__): Curry1<T3, R>;
    (t1: T__, t2: T__, t3: T3): Curry2<T1, T2, R>;
    (t1: T__, t2: T2, t3: T__): Curry2<T1, T3, R>;
    (t1: T1, t2: T__, t3: T__): Curry2<T2, T3, R>;
};
type Curry4<T1, T2, T3, T4, R> = {
    (): Curry4<T1, T2, T3, T4, R>;
    (t1: T1): Curry3<T2, T3, T4, R>;
    (t1: T1, t2: T2): Curry2<T3, T4, R>;
    (t1: T__, t2: T2): Curry3<T1, T3, T4, R>;
    (t1: T1, t2: T__): Curry3<T2, T3, T4, R>;
    (t1: T1, t2: T2, t3: T3): Curry1<T4, R>;
    (t1: T__, t2: T2, t3: T3): Curry2<T1, T4, R>;
    (t1: T1, t2: T__, t3: T3): Curry2<T2, T4, R>;
    (t1: T1, t2: T2, t3: T__): Curry2<T3, T4, R>;
    (t1: T__, t2: T__, t3: T3): Curry3<T1, T2, T4, R>;
    (t1: T__, t2: T2, t3: T__): Curry3<T1, T3, T4, R>;
    (t1: T1, t2: T__, t3: T__): Curry3<T2, T3, T4, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4): R;
    (t1: T__, t2: T2, t3: T3, t4: T4): Curry1<T1, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4): Curry1<T2, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4): Curry1<T3, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__): Curry1<T4, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4): Curry2<T1, T2, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4): Curry2<T1, T3, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__): Curry2<T1, T4, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4): Curry2<T2, T3, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__): Curry2<T2, T4, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__): Curry2<T3, T4, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4): Curry3<T1, T2, T3, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__): Curry3<T1, T2, T4, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__): Curry3<T1, T3, T4, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__): Curry3<T2, T3, T4, R>;
};
type Curry5<T1, T2, T3, T4, T5, R> = {
    (): Curry5<T1, T2, T3, T4, T5, R>;
    (t1: T1): Curry4<T2, T3, T4, T5, R>;
    (t1: T1, t2: T2): Curry3<T3, T4, T5, R>;
    (t1: T__, t2: T2): Curry4<T1, T3, T4, T5, R>;
    (t1: T1, t2: T__): Curry4<T2, T3, T4, T5, R>;
    (t1: T1, t2: T2, t3: T3): Curry2<T4, T5, R>;
    (t1: T__, t2: T2, t3: T3): Curry3<T1, T4, T5, R>;
    (t1: T1, t2: T__, t3: T3): Curry3<T2, T4, T5, R>;
    (t1: T1, t2: T2, t3: T__): Curry3<T3, T4, T5, R>;
    (t1: T__, t2: T__, t3: T3): Curry4<T1, T2, T4, T5, R>;
    (t1: T__, t2: T2, t3: T__): Curry4<T1, T3, T4, T5, R>;
    (t1: T1, t2: T__, t3: T__): Curry4<T2, T3, T4, T5, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4): Curry1<T5, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4): Curry2<T1, T5, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4): Curry2<T2, T5, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4): Curry2<T3, T5, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__): Curry2<T4, T5, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4): Curry3<T1, T2, T5, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4): Curry3<T1, T3, T5, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__): Curry3<T1, T4, T5, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4): Curry3<T2, T3, T5, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__): Curry3<T2, T4, T5, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__): Curry3<T3, T4, T5, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4): Curry4<T1, T2, T3, T5, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__): Curry4<T1, T2, T4, T5, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__): Curry4<T1, T3, T4, T5, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__): Curry4<T2, T3, T4, T5, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T5): R;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T5): Curry1<T1, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T5): Curry1<T2, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T5): Curry1<T3, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T5): Curry1<T4, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T__): Curry1<T5, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T5): Curry2<T1, T2, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T5): Curry2<T1, T3, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T5): Curry2<T1, T4, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T__): Curry2<T1, T5, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T5): Curry2<T2, T3, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T5): Curry2<T2, T4, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T__): Curry2<T2, T5, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T5): Curry2<T3, T4, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T__): Curry2<T3, T5, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T__): Curry2<T4, T5, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T5): Curry3<T1, T2, T3, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T5): Curry3<T1, T2, T4, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T__): Curry3<T1, T2, T5, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T5): Curry3<T1, T3, T4, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T__): Curry3<T1, T3, T5, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T__): Curry3<T1, T4, T5, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T5): Curry3<T2, T3, T4, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T__): Curry3<T2, T3, T5, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T__): Curry3<T2, T4, T5, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T__): Curry3<T3, T4, T5, R>;
    (t1: T__, t2: T__, t3: T__, t4: T__, t5: T5): Curry4<T1, T2, T3, T4, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T__): Curry4<T1, T2, T3, T5, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T__): Curry4<T1, T2, T4, T5, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T__): Curry4<T1, T3, T4, T5, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T__): Curry4<T2, T3, T4, T5, R>;
};
type Curry6<T1, T2, T3, T4, T5, T6, R> = {
    (): Curry6<T1, T2, T3, T4, T5, T6, R>;
    (t1: T1): Curry5<T2, T3, T4, T5, T6, R>;
    (t1: T1, t2: T2): Curry4<T3, T4, T5, T6, R>;
    (t1: T__, t2: T2): Curry5<T1, T3, T4, T5, T6, R>;
    (t1: T1, t2: T__): Curry5<T2, T3, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T3): Curry3<T4, T5, T6, R>;
    (t1: T__, t2: T2, t3: T3): Curry4<T1, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T3): Curry4<T2, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T__): Curry4<T3, T4, T5, T6, R>;
    (t1: T__, t2: T__, t3: T3): Curry5<T1, T2, T4, T5, T6, R>;
    (t1: T__, t2: T2, t3: T__): Curry5<T1, T3, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__): Curry5<T2, T3, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4): Curry2<T5, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4): Curry3<T1, T5, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4): Curry3<T2, T5, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4): Curry3<T3, T5, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__): Curry3<T4, T5, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4): Curry4<T1, T2, T5, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4): Curry4<T1, T3, T5, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__): Curry4<T1, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4): Curry4<T2, T3, T5, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__): Curry4<T2, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__): Curry4<T3, T4, T5, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4): Curry5<T1, T2, T3, T5, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__): Curry5<T1, T2, T4, T5, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__): Curry5<T1, T3, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__): Curry5<T2, T3, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T5): Curry1<T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T5): Curry2<T1, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T5): Curry2<T2, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T5): Curry2<T3, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T5): Curry2<T4, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T__): Curry2<T5, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T5): Curry3<T1, T2, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T5): Curry3<T1, T3, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T5): Curry3<T1, T4, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T__): Curry3<T1, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T5): Curry3<T2, T3, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T5): Curry3<T2, T4, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T__): Curry3<T2, T5, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T5): Curry3<T3, T4, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T__): Curry3<T3, T5, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T__): Curry3<T4, T5, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T5): Curry4<T1, T2, T3, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T5): Curry4<T1, T2, T4, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T__): Curry4<T1, T2, T5, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T5): Curry4<T1, T3, T4, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T__): Curry4<T1, T3, T5, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T__): Curry4<T1, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T5): Curry4<T2, T3, T4, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T__): Curry4<T2, T3, T5, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T__): Curry4<T2, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T__): Curry4<T3, T4, T5, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T__, t5: T5): Curry5<T1, T2, T3, T4, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T__): Curry5<T1, T2, T3, T5, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T__): Curry5<T1, T2, T4, T5, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T__): Curry5<T1, T3, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T__): Curry5<T2, T3, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T5, t6: T6): R;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T5, t6: T6): Curry1<T1, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T5, t6: T6): Curry1<T2, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T5, t6: T6): Curry1<T3, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T5, t6: T6): Curry1<T4, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T__, t6: T6): Curry1<T5, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T5, t6: T__): Curry1<T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T5, t6: T6): Curry2<T1, T2, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T5, t6: T6): Curry2<T1, T3, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T5, t6: T6): Curry2<T1, T4, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T__, t6: T6): Curry2<T1, T5, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T5, t6: T__): Curry2<T1, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T5, t6: T6): Curry2<T2, T3, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T5, t6: T6): Curry2<T2, T4, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T__, t6: T6): Curry2<T2, T5, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T5, t6: T__): Curry2<T2, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T5, t6: T6): Curry2<T3, T4, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T__, t6: T6): Curry2<T3, T5, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T5, t6: T__): Curry2<T3, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T__, t6: T6): Curry2<T4, T5, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T5, t6: T__): Curry2<T4, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T4, t5: T__, t6: T__): Curry2<T5, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T5, t6: T6): Curry3<T1, T2, T3, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T5, t6: T6): Curry3<T1, T2, T4, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T__, t6: T6): Curry3<T1, T2, T5, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T5, t6: T__): Curry3<T1, T2, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T5, t6: T6): Curry3<T1, T3, T4, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T__, t6: T6): Curry3<T1, T3, T5, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T5, t6: T__): Curry3<T1, T3, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T__, t6: T6): Curry3<T1, T4, T5, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T5, t6: T__): Curry3<T1, T4, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T4, t5: T__, t6: T__): Curry3<T1, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T5, t6: T6): Curry3<T2, T3, T4, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T__, t6: T6): Curry3<T2, T3, T5, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T5, t6: T__): Curry3<T2, T3, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T__, t6: T6): Curry3<T2, T4, T5, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T5, t6: T__): Curry3<T2, T4, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T4, t5: T__, t6: T__): Curry3<T2, T5, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T__, t6: T6): Curry3<T3, T4, T5, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T5, t6: T__): Curry3<T3, T4, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T4, t5: T__, t6: T__): Curry3<T3, T5, T6, R>;
    (t1: T1, t2: T2, t3: T3, t4: T__, t5: T__, t6: T__): Curry3<T4, T5, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T__, t5: T5, t6: T6): Curry4<T1, T2, T3, T4, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T__, t6: T6): Curry4<T1, T2, T3, T5, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T5, t6: T__): Curry4<T1, T2, T3, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T__, t6: T6): Curry4<T1, T2, T4, T5, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T5, t6: T__): Curry4<T1, T2, T4, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T4, t5: T__, t6: T__): Curry4<T1, T2, T5, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T__, t6: T6): Curry4<T1, T3, T4, T5, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T5, t6: T__): Curry4<T1, T3, T4, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T4, t5: T__, t6: T__): Curry4<T1, T3, T5, T6, R>;
    (t1: T__, t2: T2, t3: T3, t4: T__, t5: T__, t6: T__): Curry4<T1, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T__, t6: T6): Curry4<T2, T3, T4, T5, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T5, t6: T__): Curry4<T2, T3, T4, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T4, t5: T__, t6: T__): Curry4<T2, T3, T5, T6, R>;
    (t1: T1, t2: T__, t3: T3, t4: T__, t5: T__, t6: T__): Curry4<T2, T4, T5, T6, R>;
    (t1: T1, t2: T2, t3: T__, t4: T__, t5: T__, t6: T__): Curry4<T3, T4, T5, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T__, t5: T__, t6: T6): Curry5<T1, T2, T3, T4, T5, R>;
    (t1: T__, t2: T__, t3: T__, t4: T__, t5: T5, t6: T__): Curry5<T1, T2, T3, T4, T6, R>;
    (t1: T__, t2: T__, t3: T__, t4: T4, t5: T__, t6: T__): Curry5<T1, T2, T3, T5, T6, R>;
    (t1: T__, t2: T__, t3: T3, t4: T__, t5: T__, t6: T__): Curry5<T1, T2, T4, T5, T6, R>;
    (t1: T__, t2: T2, t3: T__, t4: T__, t5: T__, t6: T__): Curry5<T1, T3, T4, T5, T6, R>;
    (t1: T1, t2: T__, t3: T__, t4: T__, t5: T__, t6: T__): Curry5<T2, T3, T4, T5, T6, R>;
};
/**
 * Returns a curried equivalent of the provided function.
 *
 * Curried function can accept one or multiple parameter at the time:
 *
 * * `g(1)(2)(3)`
 * * `g(1)(2, 3)`
 * * `g(1, 2)(3)`
 * * `g(1, 2, 3)`
 *
 * The special placeholder value `__` may be used to specify "gaps", allowing partial application of any combination of arguments, regardless of their positions:
 *
 * * `g(1, 2, 3)`
 * * `g(_, 2, 3)(1)`
 * * `g(_, _, 3)(1)(2)`
 * * `g(_, _, 3)(1, 2)`
 * * `g(_, 2)(1)(3)`
 * * `g(_, 2)(1, 3)`
 * * `g(_, 2)(_, 3)(1)`
 * @example
 * ```
 * const addNumbers = (a, b, c, d) => a + b + c + d
 *
 * const addLastNumber = curry(addNumbers)(5, 5, 5)
 *
 * addLastNumber(5)
 *
 * const addFirst = curry(addNumbers)(__, 5, 5, 5)
 * addFirst(5)
 * ```
 * @group FP
 */
export declare function curry<T1, T2, R>(fn: (t1: T1, t2: T2) => R): Curry2<T1, T2, R>;
export declare function curry<T1, T2, T3, R>(fn: (t1: T1, t2: T2, t3: T3) => R): Curry3<T1, T2, T3, R>;
export declare function curry<T1, T2, T3, T4, R>(fn: (t1: T1, t2: T2, t3: T3, t4: T4) => R): Curry4<T1, T2, T3, T4, R>;
export declare function curry<T1, T2, T3, T4, T5, R>(fn: (t1: T1, t2: T2, t3: T3, t4: T4, t5: T5) => R): Curry5<T1, T2, T3, T4, T5, R>;
export declare function curry<T1, T2, T3, T4, T5, T6, R>(fn: (t1: T1, t2: T2, t3: T3, t4: T4, t5: T5, t6: T6) => R): Curry6<T1, T2, T3, T4, T5, T6, R>;
export declare function curry<T1, R>(fn: (t1: T1) => R): Curry1<T1, R>;
/**
 * Wraps callback to try/catch block
 *
 * @param callback
 * @returns
 * @example
 * ```
 * const result = tryCatch(() => fetch('http://example.com'))
 * if (value instanceof Error) {
 *     console.log(value.message)
 * }
 *
 * const parsedOrUndefined = tryCatch(() => JSON.parse(jsonString), undefined)
 * ```
 */
export declare function tryCatch<T>(callback: () => Promise<T>): Promise<T | Error>;
export declare function tryCatch<T>(callback: () => T): T | Error;
export declare function tryCatch<T, T2>(callback: () => Promise<T>, defaultValue: T2): Promise<T | T2>;
export declare function tryCatch<T, T2>(callback: () => T, defaultValue: T2): T | T2;
export {};