When I use the Press KeyCode event, the driver trow following error on Appium 2.0.

WebDriverException: Message: Method has not yet been implemented
Stacktrace:
NotYetImplementedError: Method has not yet been implemented
at FlutterDriver.executeCommand (/Users/yahya.kara/.appium/node_modules/@appium/base-driver/lib/basedriver/driver.js:67:13)
at processTicksAndRejections (node:internal/process/task_queues:95:5)
at FlutterDriver.executeCommand (/Users/yahya.kara/.appium/node_modules/appium-flutter-driver/lib/driver.ts:139:16)
at defaultBehavior (/usr/local/lib/node_modules/appium/lib/appium.js:673:14)
at AppiumDriver.executeWrappedCommand (/usr/local/lib/node_modules/appium/lib/appium.js:763:16)
at AppiumDriver.executeCommand (/usr/local/lib/node_modules/appium/lib/appium.js:685:17)
at asyncHandler (/usr/local/lib/node_modules/appium/node_modules/@appium/base-driver/lib/protocol/protocol.js:346:19)

Could you help me about How can I use the press key code keyword