/**
 * Content type of the request body sent to the external endpoint.
 *
 * See the [External Data Validation step docs](https://docs.extend.ai/2026-02-09/product/workflows/configuring-workflows-via-api#external-data-validation-step).
 */
export declare const ExternalDataValidationStepDefinitionConfigRequestOptionsContentType: {
    readonly ApplicationJson: "application/json";
    readonly TextPlain: "text/plain";
};
export type ExternalDataValidationStepDefinitionConfigRequestOptionsContentType = (typeof ExternalDataValidationStepDefinitionConfigRequestOptionsContentType)[keyof typeof ExternalDataValidationStepDefinitionConfigRequestOptionsContentType] | string;