What is the use of registry-credentials in the helm chart?

[shauryagoel]

I am getting the following error on all workers and the coordinator-
trino 103s (x24 over 27m) Warning FailedToRetrieveImagePullSecret Pod/trino-worker-65c4798f54-m49zz Unable to retrieve some image pull secrets (registry-credentials); attempting to pull the image may not succeed.
I don't know how to set up the registry-credentials secret? It is not there by default.