import { GraphQLSchema } from "graphql";
import { StrategyCollection } from "./StrategyCollection";
import { Strategy } from "./Strategy";
export interface Config {
    readonly realm: string;
    readonly base: string;
    readonly privateKey: string;
    readonly publicKeys: string[];
    readonly codeValidityDuration: number;
    readonly jwtValidityDuration: number;
    readonly strategies: StrategyCollection | Strategy[];
    readonly pg: {
        readonly database?: string;
        readonly host?: string;
        readonly idleTimeoutMillis?: number;
        readonly max?: number;
        readonly password?: string;
        readonly port?: number;
        readonly ssl?: boolean;
        readonly user?: string;
    };
    readonly sendMail: (options: {
        readonly to: string;
        readonly subject: string;
        readonly text: string;
        readonly html: string;
        readonly from?: string;
    }) => Promise<any>;
    readonly processSchema?: (schema: GraphQLSchema) => GraphQLSchema;
}
export declare function assertConfig(config: Config): void;