Xema.Schema.fetch-exclamation-mark

You're seeing just the function fetch-exclamation-mark, go back to Xema.Schema module for more information.

Specs

fetch!(t(), Xema.Ref.t() | String.t()) :: t()

Fetches a subschema from the schema by the given pointer.

If schema contains the given pointer with a subschema, then {:ok, schema} is returned otherwise a SchemaError is raised.