Ash.Api.read_one-exclamation-mark

You're seeing just the callback read_one-exclamation-mark, go back to Ash.Api module for more information.

read_one!(arg1, params)

read_one!(Ash.Query.t() | Ash.Resource.t(), params :: Keyword.t()) ::
  Ash.Resource.record() | {Ash.Resource.record(), Ash.Query.t()} | no_return()

Run an ash query, raising on more than one result. See read_one/2 for more.