import { ClientOptions } from "../types";
type RefKind = "Acl" | "Credentials" | "Domain" | "Number" | "Trunk";
type OwnedResource = {
    extended?: Record<string, unknown> | null;
} | null | undefined;
type RefLookups = Record<RefKind, (ref: string) => Promise<OwnedResource>>;
/** One reference in a request: the request field, what it names and its value. */
type RefField = {
    field: string;
    kind: RefKind;
    ref?: string | null;
};
type CheckRefs = (accessKeyId: string | undefined, refs: RefField[]) => Promise<void>;
/** A request's references, checked before it reaches Routr. */
type CheckRequestRefs<R> = (request: R, accessKeyId: string | undefined) => Promise<void>;
declare function createCheckRefs(lookups: Partial<RefLookups>): CheckRefs;
/** The production lookups: Routr's API, one client per kind. */
declare function createRefLookups(clientOptions: ClientOptions): RefLookups;
type Refs = Record<string, unknown>;
declare const agentRefs: (r: Refs) => RefField[];
declare const trunkRefs: (r: Refs) => RefField[];
declare const domainRefs: (r: Refs) => RefField[];
declare const numberRefs: (r: Refs) => RefField[];
/** The reference check for one resource type's requests. */
declare function refsChecker<R>(checkRefs: CheckRefs | undefined, refsOf: (request: Refs) => RefField[]): CheckRequestRefs<R> | undefined;
export { agentRefs, CheckRefs, CheckRequestRefs, createCheckRefs, createRefLookups, domainRefs, numberRefs, RefField, RefKind, RefLookups, refsChecker, trunkRefs };