fix: need to convert instance type from the JS class to the wrapper class

[wf9a5m75]

Please merge this pull request, and release as @ionic-native/google-maps 4.2.2.
And please specify the dependency module @ionic-native/core 4.2.0

[ihadeed]

I see that you've removed some decorators. I suggest you replace them with CordovaCheck and InstanceCheck decorators. These two decorators check if the plugin/objectInstance exists before executing the functionality. This helps eliminate runtime errors when we're developing outside of a Cordova platform.

To use the decorators, you have to give them a configuration that specifies what to return in case Cordova is not available. You can return an empty promise, empty observable, or null.

@CordovaCheck() // returns promise
@CordovaCheck({ observable: true }) // returns observable
@CordovaCheck({ sync: true }) // returns `null`

[wf9a5m75]

Thank you for your suggestion. I have been kind of busy in couple of days. I will update this later.

[wf9a5m75]

Sorry, after the discussion with ionic team, I don't support the @ionic-native/google-maps anymore. I close this PR.

[wf9a5m75]

Since the problem has solved at once, I reopen this PR.

[wf9a5m75]

@ihadeed ping