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# Install Callback Interface

class `InstallCallbackInterface`

  Callback interface for package installation or update.

## String getPackageName()

`String getPackageName()`

  Get name of a package to be installed.

  Return type: | string;
  Returns: | returns package name, i.e. “OpenCV Manager Service” or “OpenCV library”.

## void install()

`void install()`

  Installation of package has been approved.

## void cancel()

`void cancel()`

  Installation of package has been cancelled.

## void wait_install()

`void wait_install()`

  Wait for package installation.

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