import { ZodType, z } from 'zod';
export type InferInput<T extends Record<string, ZodType>> = {
    [K in keyof T]: z.infer<T[K]>;
};
export type SchemaFn<I extends Record<string, ZodType>, O extends ZodType, C> = (input: InferInput<I> & C) => Promise<z.input<O>>;
export declare class FnBuilder<I extends Record<string, ZodType>, O extends ZodType, C, M = InferInput<I> & C> {
    inputSchema: I;
    outputSchema: O;
    constructor(inputSchema: I, outputSchema: O);
    middlewares: ((x: any) => Promise<any>)[];
    use<N>(fn: (input: M) => Promise<N>): FnBuilder<I, O, C, N>;
    do(fn: (input: M) => Promise<z.input<O>>): HyperRPCFn<I, O, M>;
}
export declare class HyperRPCFn<I extends Record<string, ZodType>, O extends ZodType, C = {}> {
    input: I;
    output: O;
    fn: SchemaFn<I, O, C>;
    middlewares: ((x: any) => Promise<any>)[];
    private inputValidator;
    constructor(input: I, output: O, fn: SchemaFn<I, O, C>, middlewares?: ((x: any) => Promise<any>)[]);
    call(ctx: C, args: unknown): Promise<z.input<O>>;
}