anchor.diff:  %%--------------------------------------------------------------------
   %% @doc
   %% Returns the datastore key obtained from digesting arbitrary terms.
  -%% A list of binaries is preferred, are recommended, other terms are
  -%% firstly transformed to binary.
  +%% A list of binaries is preferred, other terms are first transformed to binary.
   %% @end
   %%--------------------------------------------------------------------
   -spec new_from_digest(digest_components()) -> key().
  
positive.code: %%--------------------------------------------------------------------
  %% @doc
  %% Builds a key that is adjacent to the Original key using given Extension.
  %% Extension must be a valid datastore key (typically a constant word or
  %% another key) or an empty binary for legacy keys.
  %% NOTE: if a legacy Original key is given, adjacency is not supported.
  %% @end
  %%--------------------------------------------------------------------
  
negative.code: %%--------------------------------------------------------------------
  %% @doc
  %% Creates a key from digest that is adjacent to the Original key.
  %% A list of binaries is preferred, other terms are first transformed to binary.
  %% NOTE: if a legacy Original key is given, adjacency is not supported.
  %% @end
  %%--------------------------------------------------------------------
  