Mock is not defined

It seems like you're encountering an error saying "Mock is not defined". This error usually occurs when the `Mock` object is not imported or defined in your code.

If you're using Python, make sure to import the `Mock` module from the `unittest` or `unittest.mock` package. Here's an example of how to import it:

from unittest.mock import Mock

If you're working with a different programming language or framework, please provide more details about your code and the context in which you are encountering this error, so I can offer more specific guidance.