export declare namespace fn {
    /**
     * Get negated thunk
     * @param thunk Thunk to negate
     */
    const not: <Value>(thunk: import("@valuer/types").Factory<Value, boolean>) => import("@valuer/types").Factory<Value, boolean>;
    /**
     * Whether any of the thunks over the input returns `true`
     * @param thunks Thunks to pipe together
     */
    const any: <Value>(...thunks: import("@valuer/types").Factory<Value, boolean>[]) => import("@valuer/types").Factory<Value, boolean>;
    /**
     * Whether exactly one of the thunks over the input returns `true`
     * @param thunks Thunks to pipe together
     */
    const one: <Value>(...thunks: import("@valuer/types").Factory<Value, boolean>[]) => import("@valuer/types").Factory<Value, boolean>;
    /**
     * Whether all of the thunks over the input return `true`
     * @param thunks Thunks to pipe together
     */
    const all: <Value>(...thunks: import("@valuer/types").Factory<Value, boolean>[]) => import("@valuer/types").Factory<Value, boolean>;
}