export type PipeFunction = (value: any, ...args: any[]) => any;
/**
 * Converts a string to uppercase
 * @param value The string to convert
 * @returns The uppercase string
 */
export declare function uppercasePipe(value: string): string;
/**
 * Converts a string to lowercase
 * @param value The string to convert
 * @returns The lowercase string
 */
export declare function lowercasePipe(value: string): string;
/**
 * Capitalizes the first character of a string
 * @param value The string to capitalize
 * @returns The capitalized string
 */
export declare function capitalizePipe(value: string): string;
/**
 * Truncates a string to a specified length and adds ellipsis
 * @param value The string to truncate
 * @param length Maximum length before truncation
 * @returns The truncated string with ellipsis if needed
 */
export declare function truncatePipe(value: string, length: string): string;
/**
 * Formats a number as USD currency
 * @param value The number to format
 * @returns Formatted currency string
 */
export declare function currencyPipe(value: number): string;
/**
 * Formats a date value according to the specified format
 * @param value Date value (string, number, or Date object)
 * @param format Format type: 'short', 'long', or default (ISO)
 * @returns Formatted date string
 */
export declare function datePipe(value: string | number | Date, format?: string): string;
/**
 * Joins array elements with the specified separator
 * @param value Array to join
 * @param separator Character(s) to use between elements (defaults to comma)
 * @returns Joined string or original value if not an array
 */
export declare function joinPipe(value: any[], separator?: string): string | any;
/**
 * Returns the first element of an array
 * @param value Array to extract from
 * @returns First element or empty string if array is empty/invalid
 */
export declare function firstPipe(value: any[]): any;
/**
 * Returns the last element of an array
 * @param value Array to extract from
 * @returns Last element or empty string if array is empty/invalid
 */
export declare function lastPipe(value: any[]): any;
/**
 * Returns the keys of an object
 * @param value Object to extract keys from
 * @returns Array of object keys or empty array if not an object
 */
export declare function keysPipe(value: object): string[];
/**
 * Returns a default value if the input is falsy
 * @param value Input value to check
 * @param defaultValue Value to return if input is falsy
 * @returns Original value or default value
 */
export declare function defaultPipe(value: any, defaultValue: string): any;
/**
 * Implements ternary operator as a pipe
 * @param value Condition to evaluate
 * @param trueValue Value to return if condition is truthy
 * @param falseValue Value to return if condition is falsy
 * @returns Selected value based on condition
 */
export declare function ternaryPipe(value: any, trueValue: string, falseValue: string): string;
/**
 * Creates and returns a map of all available pipe functions
 * @returns Map of pipe name to pipe function
 */
export declare function createPipeRegistry(): Map<string, PipeFunction>;
export declare const defaultPipes: Map<string, PipeFunction>;
/**
 * Applies a series of pipes to a value
 * @param value Initial value to transform
 * @param pipes Array of pipe strings (name and optional arguments separated by ':')
 * @param pipeFunctions Optional custom pipe registry (uses defaultPipes if not provided)
 * @returns The transformed value after applying all pipes
 */
export declare function applyPipes(value: any, pipes: string[], pipeFunctions?: Map<string, PipeFunction>): any;