import { StateObservable } from "redux-observable";
import { Observable } from "rxjs";
import { NewKernelAction, KillKernelSuccessful } from "@nteract/actions";
import { AppState } from "@nteract/types";
/**
 * An epic that emits comm actions from the backend kernel
 * @param  {Observable} action$ Action Observable from redux-observable
 * @param  {redux.Store} store   the redux store
 * @return {Observable}         Comm actions
 */
export declare const commListenEpic: (action$: Observable<NewKernelAction | KillKernelSuccessful>, state$: StateObservable<AppState>) => Observable<import("@nteract/actions").CommOpenAction | {
    type: "APPEND_OUTPUT";
    payload: import("@nteract/actions/lib/utils").HasCell & {
        output: import("@nteract/commutable").OnDiskOutput;
    };
} | {
    type: "EXECUTE_FAILED";
    payload: import("@nteract/actions/lib/utils").MaybeHasContent & {
        id?: string | undefined;
    } & {
        error: Error;
        code?: string | undefined;
    };
    error: true;
} | import("@nteract/actions").CommMessageAction | null>;