import { AudioBase, VideoBase } from '../interfaces/core';
/**
 * Type-level conversion of snake_case string to camelCase
 */
export type SnakeToCamelCase<S extends string> = S extends `${infer T}_${infer U}` ? `${T}${Capitalize<SnakeToCamelCase<U>>}` : S;
/**
 * Type-level conversion of camelCase string to snake_case
 */
export type CamelToSnakeCase<S extends string> = S extends `${infer T}${infer U}` ? T extends Uppercase<T> ? `_${Lowercase<T>}${CamelToSnakeCase<U>}` : `${T}${CamelToSnakeCase<U>}` : S;
/**
 * Recursively converts all keys in an object type from snake_case to camelCase
 */
export type SnakeKeysToCamelCase<T> = T extends Array<infer U> ? U extends object ? SnakeKeysToCamelCase<U>[] : U[] : T extends object ? {
    [K in keyof T as SnakeToCamelCase<K & string>]: SnakeKeysToCamelCase<T[K]>;
} : T;
/**
 * Recursively converts all keys in an object type from camelCase to snake_case
 */
export type CamelKeysToSnakeCase<T> = T extends Array<infer U> ? U extends object ? CamelKeysToSnakeCase<U>[] : U[] : T extends object ? {
    [K in keyof T as CamelToSnakeCase<K & string>]: CamelKeysToSnakeCase<T[K]>;
} : T;
/**
 * Recursively converts object keys from snake_case to camelCase
 */
export declare const fromSnakeToCamel: <T extends object>(data: T) => SnakeKeysToCamelCase<T>;
/**
 * Recursively converts object keys from camelCase to snake_case
 */
export declare const fromCamelToSnake: <T extends object>(data: T) => CamelKeysToSnakeCase<T>;
export declare const playStream: (url: string) => string;
export declare const isMediaAudio: (media: AudioBase | VideoBase) => media is AudioBase;