Merge branch 'main' into requirements_txt_generator

* main: (314 commits)
  Fix D401 First line of docstring should be in imperative mood (#1924)
  Fix D105 Missing docstring in magic method (#1923)
  Fix D202 No blank lines allowed after function docstring (#1920)
  Fix a minor typo in the documentation (#1922)
  Fix docformatter docstrings (#1919)
  Add SecAggMsg field to Task Message (#1893)
  Ignore typing for Ray to fix CI (#1925)
  Update `mypy` to 1.3.0 and fix typing issues (#1877)
  Upgrade black and docformatter, format ipynb (#1902)
  Updated minor error on the documentation, (3rd config dict print) instead of batch_size prints 2 to local_epochs prints 2 (#1903)
  Avoid CI job to marked as failure if requirements.txt check fails (#1906)
  Make check-requirements-txt.sh optional (#1905)
  Add default address for grpc-rere (#1900)
  Update docs dependencies, fix warnings (#1899)
  Add quickstart iOS documentation (#1897)
  Auto-generate requirements.txt to sync with pyproject.toml automatically (#1873)
  Fix updated formatting (#1890)
  Fix code documentation in aggregate_krum() (#1887)
  Remove redundant warning check for strategies subclassing FedAvg (#1855)
  Reformat server for FedBuff (#1888)
  ...

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 # https://code.visualstudio.com/docs/remote/containers-advanced#_creating-a-nonroot-user
 ARG USERNAME=flwr-vscode
@@ -26,12 +26,12 @@ RUN SNIPPET="export PROMPT_COMMAND='history -a' && export HISTFILE=/commandhisto
 # Install system dependencies
 RUN apt update 
 RUN apt install -y curl wget gnupg python3 python-is-python3 python3-pip git \
-    build-essential clang-format tmux vim
+    build-essential tmux vim
 
 RUN python -m pip install \
-    pip==22.2 \
-    setuptools==63.2.0 \
-    poetry==1.1.14
+    pip==22.3.1 \
+    setuptools==65.6.3 \
+    poetry==1.3.2
 
 USER $USERNAME
 ENV PATH="/home/$USERNAME/.local/bin:${PATH}"

.flake8

@@ -1,3 +1,4 @@
 [flake8]
 max-line-length = 88
 exclude = src/py/flwr/proto
+ignore = E302,W503

.github/ISSUE_TEMPLATE/baseline_request.yml

@@ -0,0 +1,72 @@
+name: Baseline request
+description: Suggest a new baseline
+labels: ["new baseline, good first issue"]
+title: "Add Flower Baseline: [new_baseline_name]"
+
+body:
+  - type: input
+    attributes:
+      label: Paper
+      description: What paper/ experiment would you like to see implemented as a Flower Baseline ?
+      placeholder: "Authors, year, title, experiment"
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Link
+      description: Provide a link (ideally an `arxiv.org/abs/*` link) to the abstract of the paper.
+      placeholder: https://arxiv.org/abs/2007.14390
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Maybe give motivations about why the paper should be implemented as a baseline.
+  - type: textarea
+    attributes:
+      label: Is there something else you want to add?
+  - type: markdown
+    attributes:
+      value: |
+        #### If you want to propose a new baseline, please check the PRs if someone already works on it.
+
+        ## ⚠️ Below are the recommended steps for the Baseline implementation, it shouldn't be touched upon while creating the issue, thanks! ⚠️
+  - type: input
+    attributes:
+      label: Implementation
+      value: "#### To implement this baseline, it is recommended to do the following items in that order:"
+  - type: textarea
+    attributes:
+      label: For first time contributors
+      value: |
+        - [ ]  Read the [`first contribution` doc](https://flower.dev/docs/first-time-contributors.html)
+        - [ ]  Complete the Flower tutorial
+        - [ ]  Read the Flower Baselines docs to get an overview:
+            - [ ]  [https://flower.dev/docs/using-baselines.html](https://flower.dev/docs/using-baselines.html)
+            - [ ]  [https://flower.dev/docs/contributing-baselines.html](https://flower.dev/docs/contributing-baselines.html)
+  - type: checkboxes
+    attributes:
+      label: Prepare - understand the scope
+      options:
+        - label: Read the paper linked above
+        - label: Create the directory structure in Flower Baselines (just the `__init__.py` files and a `README.md`)
+        - label: Before starting to write code, write down all of the specs of this experiment in a README (dataset, partitioning, model, number of clients, all hyperparameters, …)
+        - label: Open a draft PR
+  - type: checkboxes
+    attributes:
+      label: Implement - make it work
+      options:
+        - label: Implement some form of dataset loading and partitioning in a separate `dataset.py` (doesn’t have to match the paper exactly)
+        - label: Implement the model in PyTorch
+        - label: Write a test that shows that the model has the number of parameters mentioned in the paper
+        - label: Implement the federated learning setup outlined in the paper, maybe starting with fewer clients
+        - label: Plot accuracy and loss
+        - label: Run it and check if the model starts to converge
+  - type: checkboxes
+    attributes:
+      label: Align - make it converge
+      options:
+        - label: Implement the exact data partitioning outlined in the paper
+        - label: Use the exact hyperparameters outlined in the paper
+        - label: Make it converge to roughly the same accuracy that the paper states
+        - label: Commit the final hyperparameters and plots
+        - label: Mark the PR as ready

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,38 +1,55 @@
 <!--
-Thank you for opening a pull request! Please ensure you have taken a look at
-the contribution guidelines: https://github.com/adap/flower/blob/main/CONTRIBUTING.md
+Thank you for opening a pull request (PR)!
 
-Does the documentation need to be updated?
-See: https://flower.dev/docs/writing-documentation.html
+Contribution guidelines: https://github.com/adap/flower/blob/main/CONTRIBUTING.md
+-->
+
+## Issue
+
+### Description
+
+<!--
+Describe the problem addressed by this PR.
 
-Does the changelog need to be updated?
-See: https://github.com/adap/flower/blob/main/doc/source/changelog.rst
+Example: The variable name `rnd` could be misinterpreted as an abbreviation of *random*, but it refers to the current server round.
 -->
 
-#### Reference Issues/PRs
+### Related issues/PRs
 
 <!--
-Please use keywords (e.g., Fixes) to create a link to the issues or pull requests
-you resolved.
+Link issues and/or PRs that are related to this PR.
 
 Example: Fixes #123. See also #456 and #789.
 -->
 
-#### What does this implement/fix? Explain your changes.
+## Proposal
+
+### Explanation
 
 <!--
-Explain why this PR is needed and what kind of changes have you done.
+Explain the changes and how they improve the issue described above.
 
-Example: The variable `rnd` could be interpreted as an abbreviation of *random*, to improve clarity it was renamed to `server_round`.
+Example: The variable `rnd` was renamed to `server_round` to improve readability.
 -->
 
-#### Any other comments?
+### Checklist
+
+- [ ] Implement proposed change
+- [ ] Write tests
+- [ ] Update [documentation](https://flower.dev/docs/writing-documentation.html)
+- [ ] Update [changelog](https://github.com/adap/flower/blob/main/doc/source/changelog.rst)
+- [ ] Make CI checks pass
+- [ ] Ping maintainers on [Slack](https://flower.dev/join-slack/) (channel `#contributions`)
+
+### Any other comments?
 
 <!--
 Please be aware that it may take some time until the maintainers can review the PR.
-If you have an urgent request or question please use the Flower Slack channel.
-The Slack channel is really active and contributors respond pretty fast. 
+Smaller PRs with good descriptions can be considered much more easily.
+
+If you have an urgent request or question, please use the Flower Slack:
+
+    https://flower.dev/join-slack/ (channel: #contributions)
 
-We value your contribution and are aware of the time you put into this PR.
-Therefore, thank you for your contribution. 
+Thank you for contributing to Flower!
 -->

.github/dependabot.yml

@@ -0,0 +1,15 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    allow:
+      # Allow only updates for dev dependencies
+      - dependency-type: "development"
+    ignore:
+      # Ignore updates from certain packages
+      - dependency-name: "grpcio-tools"
+      - dependency-name: "mypy-protobuf"
+      - dependency-name: "types-protobuf"
+    open-pull-requests-limit: 3

.github/workflows/baselines.yml

@@ -8,24 +8,27 @@ on:
     branches:
       - main
 
+env:
+  FLWR_TELEMETRY_ENABLED: 0
+
 defaults:
   run:
     working-directory: baselines
 
 jobs:
   test_baselines:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.8.12
+          python-version: 3.8.15
       - name: Install build tools
         run: |
-          python -m pip install -U pip==22.2
-          python -m pip install -U setuptools==63.2.0
-          python -m pip install -U poetry==1.1.14
+          python -m pip install -U pip==22.3.1
+          python -m pip install -U setuptools==65.6.3
+          python -m pip install -U poetry==1.3.2
           poetry config virtualenvs.create false
       - name: Install dependencies
         run: |

.github/workflows/docs.yml

@@ -8,21 +8,24 @@ on:
     branches:
       - main
 
+env:
+  FLWR_TELEMETRY_ENABLED: 0
+
 jobs:
   build_docs:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Build docs
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7.12
+          python-version: 3.7.15
       - name: Install build tools
         run: |
           sudo apt install pandoc
-          python -m pip install -U pip==22.2
-          python -m pip install -U setuptools==63.2.0
-          python -m pip install -U poetry==1.1.14
+          python -m pip install -U pip==22.3.1
+          python -m pip install -U setuptools==65.6.3
+          python -m pip install -U poetry==1.3.2
           poetry config virtualenvs.create false
       - name: Install dependencies (mandatory only)
         run: python -m poetry install --extras "simulation"
@@ -36,19 +39,19 @@ jobs:
   deploy_docs:
     needs: build_docs
     if: github.ref == 'refs/heads/main'
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Deploy docs
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7.12
+          python-version: 3.7.15
       - name: Install build tools
         run: |
           sudo apt install pandoc
-          python -m pip install -U pip==22.2
-          python -m pip install -U setuptools==63.2.0
-          python -m pip install -U poetry==1.1.14
+          python -m pip install -U pip==22.3.1
+          python -m pip install -U setuptools==65.6.3
+          python -m pip install -U poetry==1.3.2
           poetry config virtualenvs.create false
       - name: Install dependencies (mandatory only)
         run: python -m poetry install --extras "simulation"

.github/workflows/examples.yml

@@ -8,20 +8,23 @@ on:
     branches:
       - main
 
+env:
+  FLWR_TELEMETRY_ENABLED: 0
+
 jobs:
   test_quickstart_pytorch:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7.12
+          python-version: 3.7.15
       - name: Install
         run: |
-          python -m pip install -U pip==22.2
-          python -m pip install -U setuptools==63.2.0
-          python -m pip install poetry==1.1.14
+          python -m pip install -U pip==22.3.1
+          python -m pip install -U setuptools==65.6.3
+          python -m pip install poetry==1.3.2
           poetry config virtualenvs.create false
       - name: Install dependencies
         run: |
@@ -67,18 +70,18 @@ jobs:
           killall python
 
   test_quickstart_tensorflow:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7.12
+          python-version: 3.8.16
       - name: Install
         run: |
-          python -m pip install -U pip==22.2
-          python -m pip install -U setuptools==63.2.0
-          python -m pip install poetry==1.1.14
+          python -m pip install -U pip==22.3.1
+          python -m pip install -U setuptools==65.6.3
+          python -m pip install poetry==1.3.2
           poetry config virtualenvs.create false
       - name: Install dependencies
         run: |
@@ -123,18 +126,18 @@ jobs:
           killall python
 
   test_pytorch_from_centralized_to_federated:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7.12
+          python-version: 3.7.15
       - name: Install
         run: |
-          python -m pip install -U pip==22.2
-          python -m pip install -U setuptools==63.2.0
-          python -m pip install poetry==1.1.14
+          python -m pip install -U pip==22.3.1
+          python -m pip install -U setuptools==65.6.3
+          python -m pip install poetry==1.3.2
           poetry config virtualenvs.create false
       - name: Install dependencies
         run: |

.github/workflows/flower-swift_sync.yml

@@ -0,0 +1,20 @@
+name: Sync flower-swift
+
+on:
+  push:
+    branches: ['main']
+    paths: ['src/swift/flwr/**']
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Pushes src/swift to flower-swift repository
+        uses: cpina/github-action-push-to-another-repository@0a14457
+        env:
+          SSH_DEPLOY_KEY: ${{ secrets.FLOWER_SWIFT_SSH }}
+        with:
+          source-directory: 'src/swift/flwr'
+          destination-github-username: 'adap'
+          destination-repository-name: 'flower-swift'