What is the first step to set up media sets in your Python transform in Foundry?

To set up media sets in your Python transform in Foundry, the first step involves establishing the necessary dependencies that enable functionality. By adding a dependency on 'transforms-media' in your code repository, you ensure that the transform can access the required libraries and functionality for media processing. This foundational step paves the way for implementing media sets effectively.

Without incorporating this dependency, the subsequent steps, such as initializing media sets or utilizing decorators, would not function correctly since the necessary tools and functions wouldn’t be available. Establishing the dependency first creates the environment where all related functionalities for media sets can operate seamlessly, making it a crucial starting point in the setup process.