Adding vector as input signals

[anilaltuner]

Title: Enhancement: Update Signal Function to Accept Vector Input

Issue Body:

Been working with the signal function in our library and the current version of it only accepts content IDs as input. For our use case, and potentially for others, it would be immensely beneficial if this function could be enhanced to accept vector inputs directly.

Desired Enhancement:

Update the signal function to accept vector inputs directly.
Update the documentation to reflect this change and provide examples of both use cases.