content_of(String.t(), Map.t(), Map.t()) :: List.t()
drop_collections(List.t()) :: any()
insert(String.t(), Map.t()) :: any()
is_valid_id?(any()) :: Boolean.t()
max_in_collection(String.t(), atom()) :: Int.t()
new_id() :: any()
object_id(String.t()) :: any()
printable_id(any()) :: String.t()
sort_expression() :: any()
type_expression([String.t()]) :: any()