DefinitelyTyped/types/next/dynamic.d.ts

import * as React from 'react';

export interface DynamicOptions<TCProps, TLProps> {
    loading?: React.ComponentType<TLProps>;
    ssr?: boolean;
    modules?(props: TCProps & TLProps): { [key: string]: Promise<React.ComponentType<any>> };
    render?(props: TCProps & TLProps, modules: { [key: string]: React.ComponentType<any> }): void;
}

export class SameLoopPromise<T> extends Promise<T> {
    constructor(executor: (resolve: (value?: T) => void, reject: (reason?: any) => void) => void);
    setResult(value: T): void;
    setError(value: any): void;
    runIfNeeded(): void;
}
export default function<TCProps, TLProps>(componentPromise: Promise<React.ComponentType<TCProps>>, options?: DynamicOptions<TCProps, TLProps>): React.ComponentType<TCProps & TLProps>;