export interface RequestArguments {
    readonly method: string;
    readonly params?: readonly unknown[] | object;
}
export interface ProviderRpcError extends Error {
    code: number;
    data?: unknown;
}
export interface ProviderMessage {
    readonly type: string;
    readonly data: unknown;
}
export interface EthSubscription extends ProviderMessage {
    readonly type: 'eth_subscription';
    readonly data: {
        readonly subscription: string;
        readonly result: unknown;
    };
}
export interface ProviderConnectInfo {
    readonly chainId: string;
}
export interface WalletProfile {
    label: string;
    provider: ERC1193Provider;
}
export interface ERC1193Events {
    accountsChanged: (accounts: string[]) => void;
    chainChanged: (chainId: string) => void;
    connect: (connectInfo: ProviderConnectInfo) => void;
    disconnect: (error: ProviderRpcError) => void;
    message: (message: ProviderMessage) => void;
}
export declare type ERC1193Param<K extends keyof ERC1193Events> = Parameters<ERC1193Events[K]> extends [infer I] ? I : Parameters<ERC1193Events[K]>;
export interface ERC1193Provider {
    chainId?: string;
    networkVersion?: string;
    selectedAddress?: string;
    isConnected(): boolean;
    send<T>(args: RequestArguments): Promise<T>;
    request<T>(args: RequestArguments): Promise<T>;
    on<K extends keyof ERC1193Events>(event: K, listener: ERC1193Events[K]): this;
    once<K extends keyof ERC1193Events>(event: K, listener: ERC1193Events[K]): this;
    addListener<K extends keyof ERC1193Events>(event: K, listener: ERC1193Events[K]): this;
    removeListener<K extends keyof ERC1193Events>(event: K, listener: ERC1193Events[K]): this;
    removeAllListeners(event: keyof ERC1193Events): this;
}
export interface AddChainParameter {
    /** 0x-prefixed hexadecimal string */
    chainId: string;
    chainName: string;
    nativeCurrency: {
        name: string;
        /** 2-6 characters long */
        symbol: string;
        decimals: number;
    };
    rpcUrls: string[];
    blockExplorerUrls?: string[];
    iconUrls?: string[];
}
export interface WatchAssetParams {
    /** Type of asset: In the future, other standards will be supported */
    type: 'ERC20';
    options: {
        /** The address of the token contract */
        address: string;
        /** A ticker symbol or shorthand, up to 5 characters */
        symbol: string;
        /** The number of token decimals */
        decimals: number;
        /** A string url of the token logo. If not provided, use blocky */
        image?: string;
    };
}