export interface MetaMaskEthereumProvider {
    isMetaMask?: boolean;
    once(eventName: string | symbol, listener: (...args: any[]) => void): this;
    on(eventName: string | symbol, listener: (...args: any[]) => void): this;
    off(eventName: string | symbol, listener: (...args: any[]) => void): this;
    addListener(eventName: string | symbol, listener: (...args: any[]) => void): this;
    removeListener(eventName: string | symbol, listener: (...args: any[]) => void): this;
    removeAllListeners(event?: string | symbol): this;
    request: (...args: any[]) => any;
    providers?: MetaMaskEthereumProvider[];
}
export declare function getMetamaskProvider(provider: MetaMaskEthereumProvider): MetaMaskEthereumProvider | null;
export declare function isSnapSupported(provider: MetaMaskEthereumProvider): Promise<boolean>;