import { Functional } from '../../../../../Class/Functional';
import { Done } from '../../../../../Class/Functional/Done';
import { System } from '../../../../../system';
import { IUserMediaOpt } from '../../../../../types/global/IUserMedia';
import { ST } from '../../../../../types/interface/ST';
export declare type I = {
    opt: IUserMediaOpt;
};
export declare type O = {
    stream: ST;
};
export default class UserMedia extends Functional<I, O> {
    private _stream;
    constructor(system: System);
    f({ opt }: I, done: Done<O>): Promise<void>;
}
