anchor.diff:  };
   to_json(?ERROR_STORAGE_IN_USE) -> #{
       <<"id">> => <<"storageInUse">>,
  -    <<"description">> => <<"Specified storage is supporting a space.">>
  +    <<"description">> => <<"Specified storage supports a space.">>
   };
   
   %%--------------------------------------------------------------------
  
positive.code: 
  from_json(#{<<"id">> := <<"storageInUse">>}) ->
      ?ERROR_STORAGE_IN_USE;
  %%--------------------------------------------------------------------
  %% Unknown / unexpected error
  %%--------------------------------------------------------------------
  
negative.code:     ParId :: gri:entity_id()
  } | {space_not_supported_by, ProviderId :: binary()}
  | {view_not_exists_on, ProviderId :: binary()}
  | transfer_already_ended | transfer_not_ended
  | storage_in_use.
  
  -type errno() :: ?OK | ?E2BIG | ?EACCES | ?EADDRINUSE | ?EADDRNOTAVAIL
  | ?EAFNOSUPPORT | ?EAGAIN | ?EALREADY | ?EBADF | ?EBADMSG | ?EBUSY
  