import type { NonEmptyString } from "../../common/CustomTypes/NonEmptyString";
import type { NaturalNumber } from "../../common/CustomTypes/Numerics";
import type { ConnectionBase } from "./Common";
export declare type ApiAuthorizerConnectionType = 'connection.api.authorizer';
export interface ApiAuthorizerConnection extends ConnectionBase {
    type: ApiAuthorizerConnectionType;
    cacheBehavior?: CachingBehavior;
}
export interface CachingBehavior {
    cacheTimeout: NaturalNumber | 0;
    identitySpecification?: IdentitySpecification;
}
export interface IdentitySpecification {
    headers?: IdentitySpecValue[];
    query?: IdentitySpecValue[];
    context?: IdentitySpecValue[];
    stageParams?: IdentitySpecValue[];
}
export declare const MAX_CACHE_TIMEOUT = 3600;
export declare function isCacheTimeout(value: unknown): value is (NaturalNumber | 0);
export declare const isApiAuthorizerConnection: import("@altostra/type-validations").ObjectOfTypeValidation<ApiAuthorizerConnection>;
declare const identitySpecValueSym: unique symbol;
export declare type IdentitySpecValue = NonEmptyString & {
    [identitySpecValueSym]: unknown;
};
export declare function isIdentitySpecValue(value: unknown): value is IdentitySpecValue;
export declare function validateIdentitySpecValue(value: unknown): asserts value is IdentitySpecValue;
export declare function identitySpecValue(value: unknown): IdentitySpecValue;
export {};