-import { JSONSchemaType } from 'ajv';
+import type { JSONSchemaType } from 'ajv';
import Ajv from 'ajv-draft-04';
import ajvFormats from 'ajv-formats';
import OCPPError from '../../exception/OCPPError';
-import { HandleErrorParams } from '../../types/Error';
-import { JsonType } from '../../types/JsonType';
-import { IncomingRequestCommand } from '../../types/ocpp/Requests';
+import type { HandleErrorParams } from '../../types/Error';
+import type { JsonType } from '../../types/JsonType';
+import type { IncomingRequestCommand } from '../../types/ocpp/Requests';
import logger from '../../utils/Logger';
import type ChargingStation from '../ChargingStation';
import { OCPPServiceUtils } from './OCPPServiceUtils';