@type param_override() ::
  {:namespace, String.t()}
  | {:table, String.t()}
  | {:where, String.t()}
  | {:columns, String.t()}

@type param_overrides() :: [param_override()]

@type shape_definition() :: String.t() | Ecto.Queryable.t() | shape_specification()

@type shape_specification() :: [
  table: binary(),
  query: atom() | struct(),
  namespace: binary(),
  where: binary(),
  columns: [binary()],
  replica: term(),
  storage: map() | nil
]