Add code style and error check.

.codespellrc

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+[codespell]
+# skipping auto generated folders
+skip = ./.tox,./.mypy_cache,./target,*/LICENSE,./venv
+ignore-words-list = ot

.flake8

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+[flake8]
+ignore =
+  # line too long, defer to black
+  E501
+
+  # allow line breaks before binary ops
+  W503
+
+  # allow line breaks after binary ops
+  W504
+
+  # allow whitespace before ':' (https://github.com/psf/black#slices)
+  E203
+
+exclude =
+  .bzr
+  .git
+  .hg
+  .svn
+  .tox
+  CVS
+  .venv*/
+  venv*/
+  target
+  __pycache__
+  scripts/*

.github/workflows/test.yml

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+name: AWS Distro Tests
+
+on:
+  push:
+  pull_request:
+env:
+  CORE_REPO_SHA: da48e0b131ff34ff382b7d1206f71b2e31929cab
+  CONTRIB_REPO_SHA: 7c12ad9844ac179e3f6a493491707a9bafd06f6b
+
+jobs:
+  misc:
+    strategy:
+      fail-fast: false
+      matrix:
+        tox-environment: ["spellcheck", "lint"]
+    name: ${{ matrix.tox-environment }}
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Checkout Contrib Repo @ SHA - ${{ github.sha }}
+      uses: actions/checkout@v2
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v2
+      with:
+        python-version: "3.10"
+    - name: Install tox
+      run: pip install tox==3.27.1
+    - name: Install libsnappy-dev
+      if: ${{ matrix.tox-environment == 'lint' }}
+      run: sudo apt-get install -y libsnappy-dev
+    - name: Cache tox environment
+        # Preserves .tox directory between runs for faster installs
+      uses: actions/cache@v1
+      with:
+        path: |
+          .tox
+          ~/.cache/pip
+        key: v7-misc-tox-cache-${{ matrix.tox-environment }}-${{ hashFiles('tox.ini',
+          'dev-requirements.txt') }}
+    - name: run tox
+      run: tox -e ${{ matrix.tox-environment }}

.gitignore

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+*.py[cod]
+*.sw[op]
+
+# C extensions
+*.so
+
+# Packages
+*.egg
+*.egg-info
+dist
+dist-info
+build
+eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+pyvenv.cfg
+lib
+lib64
+__pycache__
+venv*/
+.venv*/
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+coverage.xml
+.coverage
+.nox
+.tox
+.cache
+htmlcov
+
+# Translations
+*.mo
+
+# Mac
+.DS_Store
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+
+# JetBrains
+.idea
+
+# VSCode
+.vscode
+
+# Sphinx
+_build/
+
+# mypy
+.mypy_cache/
+target

.isort.cfg

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+[settings]
+include_trailing_comma=True
+force_grid_wrap=0
+use_parentheses=True
+line_length=79
+profile=black
+
+; 3 stands for Vertical Hanging Indent, e.g.
+; from third_party import (
+;     lib1,
+;     lib2,
+;     lib3,
+; )
+; docs: https://github.com/timothycrosley/isort#multi-line-output-modes
+multi_line_output=3
+skip=target
+skip_glob=**/gen/*,.venv*/*,venv*/*,.tox/*
+known_first_party=opentelemetry
+known_third_party=psutil,pytest,redis,redis_opentracing