/**
 * A mapper to allow some filtering for retrieved variables that could be undefined.
 */
export declare class LazyMapper {
    /**
     * Filter a data and set a default value if the data is undefined. If it's defined, transform the data the way you want then filter whatever the result is.
     * @param {any} data The data to filter.
     * @param {T} defaultValue The default value to set to your data in case it's undefined.
     * @param {(d: any) => T} transform A function to transform your any data type into your actual type.
     * @param {(d: T) => T} filter A function to filter your data.
     * @returns {T} The data with your choosen filtered data type.
     */
    static filterData<T>(data: any, defaultValue: T, transform: (d: any) => T, filter: (d: T) => T): T;
    /**
     * Filter the value of a received number or the default number in case the received number was undefined.
     * @param {any} data The data to filter.
     * @param {number} defaultValue The default number to set.
     * @param {(d: number) => number} filter The filtering function.
     * @returns {number} The filtered number.
     */
    static filterNumber(data: any, defaultValue: number, filter: (d: number) => number): number;
    /**
     * Filter the value of a received string or the default string in case the received string was undefined.
     * @param {any} data The data to filter.
     * @param {string} defaultValue The default string to set.
     * @param {(d: string) => string} filter The filtering function.
     * @returns {string} The filtered number.
     */
    static filterString(data: any, defaultValue: string, filter: (d: string) => string): string;
    /**
     * Filter a data and set a default value if the data is undefined. If it's defined, transform the data the way you want.
     * @param {any} data The data to filter.
     * @param {T} defaultValue The default value to set to your data in case it's undefined.
     * @param {(d: any) => T} transform A function to transform your any data type into your actual type.
     * @returns {T} The data with your choosen filtered data type.
     */
    static defaultData<T>(data: any, defaultValue: T, transform: (d: any) => T): T;
    /**
     * Retrieve a boolean from a data. If the data is undefined, the value will be set to a default value.
     * @param {any} data The data to filter.
     * @param {boolean} defaultValue The default value to set to your data in case it's undefined.
     * @returns {boolean} The filtered data.
     */
    static defaultBoolean(data: any, defaultValue: boolean): boolean;
    /**
     * Retrieve a number from a data. If the data is undefined, the value will be set to a default value.
     * @param {any} data The data to filter.
     * @param {number} defaultValue The default value to set to your data in case it's undefined.
     * @returns {number} The filtered data.
     */
    static defaultNumber(data: any, defaultValue: number): number;
    /**
     * Retrieve a string from a data. If the data is undefined, the value will be set to a default value.
     * @param {any} data The data to filter.
     * @param {string} defaultValue The default value to set to your data in case it's undefined.
     * @returns {string} The filtered data.
     */
    static defaultString(data: any, defaultValue: string): string;
    /**
     * Convert a data to a boolean type. If undefined, it's set to false by default.
     * @param {any} data The data to convert.
     * @returns {boolean} The boolean representation of the data.
     */
    static boolean(data: any): boolean;
    /**
     * Convert a data to a number type. If undefined, it's set to 0 by default.
     * @param {any} data The data to convert.
     * @returns {number} The number representation of the data.
     */
    static number(data: any): number;
    /**
     * Convert a data to a string type. If undefined, it's set to "" by default.
     * @param {any} data The data to convert.
     * @returns {string} The string representation of the data.
     */
    static string(data: any): string;
}
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