import { $ } from './e';
export declare const not: import("./e").MonoOp<$<boolean>, import("rxjs").Observable<boolean>>;
export declare const truthy: import("./e").MonoOp<any, import("rxjs").Observable<boolean>>;
export declare function and(a: $<boolean>, b: $<boolean>, ...bools: $<boolean>[]): import("rxjs").Observable<boolean>;
export declare function or(a: $<boolean>, b: $<boolean>, ...bools: $<boolean>[]): import("rxjs").Observable<boolean>;
export declare function eq(a: $<any>, b: $<any>, ...rest: $<any>[]): import("rxjs").Observable<boolean>;
export declare function neq(a: $<any>, b: $<any>, ...rest: $<any>[]): import("rxjs").Observable<boolean>;