import { SchemaDirectiveVisitor } from "graphql-tools";
import { GraphQLObjectType, GraphQLField, GraphQLInterfaceType } from "graphql";
export declare function isUserAuthorized(serviceUA: string, email: string, permission: string, iamURL: string, iamToken: string, servicePermissionsIdentifier?: string): Promise<boolean>;
export declare class AuthorizationDirective extends SchemaDirectiveVisitor {
    static serviceUA: string;
    static servicePermissionsIdentifier: string;
    static emailPath: string;
    static iamURL: string;
    static iamToken: string;
    visitFieldDefinition(field: GraphQLField<any, any, {
        [key: string]: any;
    }>, _detail: {
        objectType: GraphQLObjectType | GraphQLInterfaceType;
    }): void | GraphQLField<any, any, {
        [key: string]: any;
    }> | null;
}
interface Options {
    serviceUserAgent: string;
    emailPath?: string;
    iamURL: string;
    iamToken: string;
    servicePermissionsIdentifier?: string;
}
export declare function authorizationDirective(options: Options): SchemaDirectiveVisitor;
export {};