/**
 * @module Utils
 */
import { Client } from "./client";
import { Header } from "./agent";
import { Authenticable, Paginateable, AdminAuthenticable, Taggable, HttpOptions, Filterable, QueryValue } from "./types";
export interface OptionalStringMap {
    [key: string]: QueryValue;
}
import { StringMap } from "./agent";
/**
 * toQuery
 *
 * Shallow copies object while omitting undefined attributes
 */
export declare const toStringMap: (optional?: OptionalStringMap | undefined) => StringMap;
interface OptionalTimeout {
    timeout?: number;
}
/**
 * toTimeout
 *
 * Returns timeout value from request object. Delegates to default client
 * timeout if not specified
 */
export declare const toTimeout: ({ timeout }: OptionalTimeout, client: Client) => number;
interface OptionalHeader {
    header?: OptionalStringMap;
}
/**
 * toHeader
 *
 * Extracts HTTP Header object from request and client default headers
 *
 * Precendence is given to request specific headers
 */
export declare const toHeader: ({ header }: OptionalHeader, client: Client) => Header;
declare type AuthenticationOptions = Partial<Authenticable & AdminAuthenticable>;
/**
 * toAuthHeader
 *
 * Extracts credentials into authorization header format
 */
export declare const toAuthHeader: (client: Client, options: AuthenticationOptions) => string;
interface AppendAuthorizationOptions {
    options: AuthenticationOptions;
    client: Client;
    header: StringMap;
}
interface AppendAuthorization {
    (options: AppendAuthorizationOptions): StringMap;
}
/**
 * appendAuthorization
 *
 * Mutates a headers object to include Authorization header. Will insert if found:
 * - api_key
 * - licensee
 * - user_token
 */
export declare const appendAuthorization: AppendAuthorization;
interface AppendIpOptions {
    header: StringMap;
    options: HttpOptions;
}
export declare const appendIp: ({ header, options }: AppendIpOptions) => StringMap;
interface AppendFilterOptions {
    query: StringMap;
    options: Filterable;
}
export declare const appendFilter: ({ query, options, }: AppendFilterOptions) => StringMap;
interface AppendTagsOptions {
    client: Client;
    query: StringMap;
    options: Taggable;
}
export declare const appendTags: ({ client, query, options, }: AppendTagsOptions) => StringMap;
interface AppendPageOptions {
    query: StringMap;
    options: Paginateable;
}
export declare const appendPage: ({ query, options, }: AppendPageOptions) => StringMap;
export {};