/**
 * ISigBuilder is an interface for building signature from document.
 */
export interface ISigBuilder<Doc = unknown, Sig = unknown> {
    /**
     * build signature from document.
     */
    buildSignature(doc: Doc): Sig | Promise<Sig>;
}
/**
 * ITxBuilder is an interface for building signed transaction document.
 */
export interface ITxBuilder<SignArgs = unknown, SignResp = unknown> {
    buildSignedTxDoc(args: SignArgs): Promise<SignResp>;
}
/**
 * ITxBuilderContext is a context object for building transaction document.
 */
export interface ITxBuilderContext<Signer = unknown> {
    signer?: Signer;
    /**
     * set staging data.
     * @param data - staging data
     */
    setStagingData(key: string, data: unknown): void;
    /**
     * get staging data.
     */
    getStagingData<TStaging>(key: string): TStaging;
}
/**
 * BaseTxBuilderContext is a base class for ITxBuilderContext.
 */
export declare class BaseTxBuilderContext<Signer> implements ITxBuilderContext<Signer> {
    signer?: Signer;
    private stagingData;
    constructor(signer?: Signer);
    setStagingData(key: string, data: unknown): void;
    getStagingData<TStaging>(key: string): TStaging;
}