Runs a function in an Apps Script project. The script project must be deployed for use with the
Apps Script API and the calling application must share the same Cloud Platform project.
This method requires authorization with an OAuth 2.0 token that includes at least one of the
scopes listed in the [Authorization](#authorization) section; script projects that do not require
authorization cannot be executed through this API. To find the correct scopes to include in the
authentication token, open the project in the script editor, then select **File > Project
properties** and click the **Scopes** tab.
The error `403, PERMISSION_DENIED: The caller does not have permission` indicates that the Cloud
Platform project used to authorize the request is not the same as the one used by the script.
Create a request for the method "scripts.run".
This request holds the parameters needed by the script server. After setting any optional
parameters, call the
AbstractGoogleClientRequest.execute()
method to invoke the remote operation.