import { DocumentSnapshot } from "@google-cloud/firestore";
export declare type OrNull<T> = T | null;
export declare type PrimitiveType = number | boolean | string;
export declare type FirestoreQuery = {
    path: OrNull<string>;
    where?: OrNull<{
        field: string;
        operator: "<" | "<=" | "==" | ">" | ">=" | "array-contains";
        value: any;
    }>;
    orderBy?: OrNull<{
        field: string;
        type?: "desc" | "asc";
    }[]>;
    limit?: OrNull<number>;
    startAt?: OrNull<PrimitiveType | PrimitiveType[] | DocumentSnapshot>;
    endAt?: OrNull<PrimitiveType | DocumentSnapshot>;
    startAfter?: OrNull<PrimitiveType | DocumentSnapshot>;
    endBefore?: OrNull<PrimitiveType | DocumentSnapshot>;
};
export declare type FirestoreNodeValue = {} | number | boolean | string | null;
export declare type FirestoreProviderState = {
    firebase: any;
    firestore: firebase.firestore.Firestore;
    dataTree: {
        [path: string]: {
            isLoading: boolean;
            value: FirestoreNodeValue[];
            unsub: () => void;
        };
    };
    listenTo: (query: FirestoreQuery, documentOrCollection: "document" | "collection") => void;
    stopListeningTo: (path: string) => void;
};
export declare type FirestoreContextConsumerWithLifeCycleProps = {} & FirestoreProviderState & FirestoreQuery;
export declare type FirestoreNodeValueContainer = {
    val: () => FirestoreNodeValue;
};
export interface InitializeAppArgs {
    authDomain: string;
    apiKey: string;
    databaseURL: string;
    firebase: any;
    projectId: string;
    messagingSenderId?: string;
    storageBucket?: string;
    appId?: string;
    measurementId?: string;
}
export declare type FirestoreProviderProps = InitializeAppArgs;