Add HTTP retries + timeout and share methods in StandardCollection with graph collections

Author: joowani

.pre-commit-config.yaml

@@ -24,7 +24,7 @@ repos:
     rev: v0.790
     hooks:
       - id: mypy
-        args: [ arango ]
+        files: ^arango/
   - repo: https://gitlab.com/pycqa/flake8
     rev: 3.8.4
     hooks:

CONTRIBUTING.md

@@ -10,7 +10,7 @@ pre-commit install         # Install git pre-commit hooks
 Run unit tests with coverage:
 
 ```shell
-py.test --cov=./ --cov-report=html  # Open htmlcov/index.html in your browser
+py.test --cov=arango --cov-report=html  # Open htmlcov/index.html in your browser
 ```
 
 Build and test documentation: