Github user aviyoop commented on a diff in the pull request:
https://github.com/apache/incubator-ariatosca/pull/207#discussion_r151185189
--- Diff: aria/parser/consumption/presentation.py ---
@@ -13,15 +13,16 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-
-from ...utils.threading import FixedThreadPoolExecutor
-from ...utils.formatting import json_dumps, yaml_dumps
+from ...utils.formatting import (json_dumps, yaml_dumps)
from ..loading import UriLocation
-from ..reading import AlreadyReadException
from ..presentation import PresenterNotFoundError
from .consumer import Consumer
+PRESENTATION_CACHE = {}
+CANONICAL_LOCATION_CACHE = {}
+
+
class Read(Consumer):
--- End diff --
The methods of these class should be documented, including explanations of
the relationships between them.
---
