export declare function If(sources: any): any;
export declare const $if: ($cond: any, $then: any, $else: any) => any;
export declare const $not: (src: any) => any;
export declare const $and: (...conditions: any[]) => any;
export declare const $combine: (...mappers: any[]) => any;
export declare const $or: (...conditions: any[]) => any;
export declare const $eq: (...args: any[]) => any;