import { SchemaOptions as MongooseSchemaOptions, Schema, SchemaDefinition } from 'mongoose';
export type SchemaPlugin = {
    fn: (schema: Schema) => void;
    options?: any;
};
export type SchemaOptions = MongooseSchemaOptions & {
    plugins?: SchemaPlugin[];
};
/**
 * Base schema to be extended by all persistable domain object schemas.
 */
export declare const BaseSchema: Schema<any, import("mongoose").Model<any, any, any, any, any, any>, {}, {}, {}, {}, {
    toObject: {
        transform: (document: any, result: any) => void;
    };
}, {}, any>;
/**
 * Schema to be extended by all persistable domain objects that require audit capability.
 */
export declare const AuditableSchema: Schema<any, import("mongoose").Model<any, any, any, any, any, any>, {}, {}, {}, {}, import("mongoose").DefaultSchemaOptions, {
    [x: string]: unknown;
}, import("mongoose").Document<unknown, {}, import("mongoose").FlatRecord<{
    [x: string]: unknown;
}>> & import("mongoose").FlatRecord<{
    [x: string]: unknown;
}> & Required<{
    _id: unknown;
}> & {
    __v: number;
}>;
/**
 * Creates a new schema from the given data.
 * @param {Schema<T>} baseSchema the base schema.
 * @param {Schema<S>} extension the schema to extend from.
 * @returns {Schema<T & S>} a new schema that integrates the contents of the given parameters.
 */
export declare function extendSchema<T = object, S = object>(baseSchema: Schema<T>, extension: Schema<S>): Schema<T & S>;
/**
 * Creates a new schema from the given data.
 * @param {Schema<T>} baseSchema the base schema.
 * @param {SchemaDefinition<S>} extension the schema definition to extend from.
 * @param {SchemaOptions} options (optional) some schema options.
 * @returns {Schema<T & S>} a new schema that integrates the contents of the given parameters.
 */
export declare function extendSchema<T = object, S = object>(baseSchema: Schema<T>, extension: SchemaDefinition<S>, options?: SchemaOptions): Schema<T & S>;