export interface ImageModifiers {
    format?: string;
    height?: number;
    width?: number;
    [key: string]: any;
}
export type ParamFormatter = (key: string, value: string) => string;
export type ParamMapper = {
    [key: string]: string;
} | ((key: string) => string);
export interface ProviderUrlBuilder {
    keyMap?: ParamMapper;
    formatter?: ParamFormatter;
    joinWith?: string;
    valueMap?: {
        [key: string]: ParamMapper;
    };
}
/**
 * Builds the parameterized Cloudinary url
 */
export declare function buildProviderUrl({ formatter, keyMap, joinWith, valueMap, }?: ProviderUrlBuilder): (modifiers?: {
    [key: string]: string;
}) => string;
/**
 * Checks if a (sub)domain is included in a list of acceptable domains
 * @param str the (sub)domain to check
 * @param domains an array of valid domains
 */
export declare function isDomainValid(str?: string, domains?: string[]): boolean;