Interface Signer

interface Signer {
    call: <RequestT, ResponseT, OutputT>(
        request: Executable<RequestT, ResponseT, OutputT>,
    ) => Promise<OutputT>;
    checkTransaction: <T extends Transaction>(transaction: T) => Promise<T>;
    getAccountBalance: () => Promise<AccountBalance>;
    getAccountId: () => AccountId;
    getAccountInfo: () => Promise<AccountInfo>;
    getAccountKey?: () => Key;
    getAccountRecords: () => Promise<TransactionRecord[]>;
    getLedgerId: () => null | LedgerId;
    getMirrorNetwork: () => string[];
    getNetwork: () => { [key: string]: string | AccountId };
    populateTransaction: <T extends Transaction>(transaction: T) => Promise<T>;
    sign: (
        messages: Uint8Array<ArrayBufferLike>[],
    ) => Promise<SignerSignature[]>;
    signTransaction: <T extends Transaction>(transaction: T) => Promise<T>;
}