Java-client: Class cast Appium driver to Android Driver

[VenkateshPS]

Description

would it be possible to add class casting of Appium driver to Android driver/ iOS Driver, while many of the features are possible using Appium driver you cannot really check if Android keyboard is displayed using an Appium driver.

Environment

• java client build version or git revision if you use some shapshot:
• Appium server version or git revision if you use some shapshot:
• Desktop OS/version used to run Appium if necessary:
• Node.js version (unless using Appium.app|exe) or Appium CLI or Appium.app|exe:
• Mobile platform/version under test:
• Real device or emulator/simulator:

Details

Please provide more details, if necessary.

Code To Reproduce Issue [ Good To Have ]

Please remember that, with sample code; it's easier to reproduce bug and much faster to fix it.
You can git clone https://github.com/appium/sample-code or https://github.com/appium/sample-code/tree/master/sample-code/apps and reproduce an issue using Java and sample apps.
Also you can create a gist with pasted java code sample or put it here using markdown. About markdown please read Mastering markdown and
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Ecxeption stacktraces

Please create a gist with pasted stacktrace of exception thrown by java.

Link to Appium logs

Please create a gist which is a paste of your _full_ Appium logs, and link them here. Do _not_ paste your full Appium logs here, as it will make this issue very long and hard to read!
If you are reporting a bug, _always_ include Appium logs as linked gists! It helps to define the problem correctly and clearly.

[saikrishna321]

Please raise question in https://discuss.appium.io/ this place is raise issue.