import { TableServiceClientOptions, TableEntity, TableTransactionResponse, UpdateMode, TableEntityResult } from '@azure/data-tables';
export interface TableRow extends TableEntity {
    [key: string]: string | null | number | boolean | undefined | unknown;
}
/**
 * AzureDataTables is a convenience wrapper around @azure/data-tables library.
 */
export declare class AzureDataTables {
    private readonly client;
    protected connectionString: string;
    protected tableName: string;
    protected options?: TableServiceClientOptions;
    private readonly serviceClient;
    /**
     * Creates a new instance of AzureDataTables.
     * @param connectionString Azure Data Tables connection string.
     * @param tableName Azure Data Tables table name.
     * @param options Azure Data Tables client options.
     */
    constructor(connectionString: string, tableName: string, options?: TableServiceClientOptions);
    /**
     * @description - converts object and array properties to string as needed
     * @param { TableEntity } obj - object to be converted to a table row
     * @returns { TableRow } - returns a table row that can safely be used in a transaction
     */
    toTableRow(obj: TableEntity): TableRow;
    /**
     * @description - determines if a table row is valid
     * @param { any } obj - object to be validated
     * @returns {boolean} - returns true if the object is a valid table record, i.e. has partitionKey and rowKey that are
     *  strings longer than 0 and all other object values are either a string, null, number, or boolean
     */
    isTableRecord(obj: any): boolean;
    /**
     * @description maps table rows by partition key since we need to do transactions by partitionKey.
     * @param tableRows Table rows to be grouped by partition key.
     * @returns a Map of partition key to table rows.
     */
    private mapByPartitionKey;
    /**
     * @description updates a table row or rows.
     * @param {TableEntity | TableEntity[]} tableRowOrRows - one or more table rows to be updated.
     * @param {UpdateMode} updateMode - Mode of update.
     * @returns {Promise<TableTransactionResponse[]} - returns an array of TableTransactionResponse.
     */
    upsert(tableRowOrRows: TableEntity | TableEntity[], updateMode?: UpdateMode): Promise<TableTransactionResponse[]>;
    /**
     * @description creates a table row or rows.
     * @param {TableEntity | TableEntity[]} tableRowOrRows - one or more table rows to be created.
     * @returns {Promise<TableTransactionResponse[]>} - returns an array of TableTransactionResponse.
     */
    create(tableRowOrRows: TableEntity | TableEntity[]): Promise<TableTransactionResponse[]>;
    /**
     * @description deletes a table row or rows.
     * @param {TableEntity | TableEntity[]} tableRowOrRows - one or more table rows to be created.
     * @returns {Promise<TableTransactionResponse[]>} - returns an array of TableTransactionResponse.
     */
    delete(tableRowOrRows: TableEntity | TableEntity[]): Promise<TableTransactionResponse[]>;
    /**
     * @desecription - returns query results.
     * @param query - query to be executed
     * @param select - an array of columns to be selected
     * @returns - returns a promise that resolves to an array of table rows.
     */
    query(query: string, select?: string[]): Promise<Array<TableEntityResult<Record<string, unknown>>>>;
}