Secrets.yaml how to use and debug

I am trying to use the secrets.yaml file in the config directory. I have a few question an di think even a few answeres would get me going.

  1. how to log / test that the secrets.yaml file is being seen and read.
  2. what is the syntax for the data in the file and how to access the data in secrets.
  3. who supports this in home assistant

I thank you for any help with this.
The_Sasquash

  1. Run a config check after saving config that uses secrets. Developer Tools → YAML. Errors will be logged. There is also information on logging debug messages in the documentation: https://www.home-assistant.io/docs/configuration/secrets/#debugging-secrets

  2. It is in the documentation: https://www.home-assistant.io/docs/configuration/secrets/#using-secretsyaml

  3. Not entirely sure what you are asking here. It is part of the Home Assistant core. So if you have an issue you can open one in the core repository on github. If you are after help then the community resources are listed here: Help - Home Assistant