Add a file

.pre-commit-config.yaml

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+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.2.0
+  hooks:
+  - id: check-executables-have-shebangs
+  - id: check-json
+  - id: check-merge-conflict
+  - id: check-shebang-scripts-are-executable
+  - id: check-toml
+  - id: check-yaml
+  - id: double-quote-string-fixer
+  - id: end-of-file-fixer
+  - id: mixed-line-ending
+    args: ['--fix=lf']
+  - id: requirements-txt-fixer
+  - id: trailing-whitespace
+- repo: https://github.com/myint/docformatter
+  rev: v1.4
+  hooks:
+  - id: docformatter
+    args: ['--in-place']
+- repo: https://github.com/pycqa/isort
+  rev: 5.12.0
+  hooks:
+    - id: isort
+- repo: https://github.com/pre-commit/mirrors-mypy
+  rev: v0.991
+  hooks:
+    - id: mypy
+      args: ['--ignore-missing-imports']
+- repo: https://github.com/google/yapf
+  rev: v0.32.0
+  hooks:
+  - id: yapf
+    args: ['--parallel', '--in-place']

.style.yapf

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+[style]
+based_on_style = pep8
+blank_line_before_nested_class_or_def = false
+spaces_before_comment = 2
+split_before_logical_operator = true

app.py

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+import gradio as gr
+import numpy as np
+
+
+def create_map():
+    return np.full((512, 1024), 255, dtype=np.uint8)
+
+
+def run(image):
+    return image['mask']
+
+
+with gr.Blocks() as demo:
+    with gr.Row():
+        with gr.Column():
+            image = gr.Image(tool='sketch')
+            clear_button = gr.Button('Clear')
+            run_button = gr.Button('Run')
+        with gr.Column():
+            result = gr.Image()
+
+    clear_button.click(fn=create_map, outputs=image)
+    run_button.click(fn=run, inputs=image, outputs=result)
+
+demo.queue().launch()