Ecto.Adapters.DynamoDB.Query.get_item

You're seeing just the function get_item, go back to Ecto.Adapters.DynamoDB.Query module for more information.
Link to this function

get_item(repo, table, search, opts)

View Source

Specs

get_item(Ecto.Repo.t(), table_name(), search(), keyword()) ::
  dynamo_response() | no_return()