export declare type JsonAttributesSource = 'Newtonsoft.Json' | 'System.Text.Json';
export declare class JsonAttributesSourceConfiguration {
    readonly namespace: string;
    readonly propertyAttribute: string;
    readonly requiredAttribute: string;
    constructor(namespace: string, propertyAttribute: string, requiredAttribute: string);
}
export declare function getJsonAttributeSourceConfiguration(attributesSource: JsonAttributesSource): JsonAttributesSourceConfiguration;