Every Actions project has a default, main invocation that acts as the default entry point into your Actions project. The language model for this invocation is associated with your project's display name, so users just need to say a phrase similar to "Ok Google, talk to <display name>" to use this invocation. When users invoke your Actions in this manner, the Assistant runtime matches the
actions.intent.MAIN system intent.
Create the main invocation
To create the main invocation, follow these steps: