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DTAT399C
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‎tutorials/3-advanced-topics/DTAT399C_backend.units.ipynb‎

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# deeptrack.backend.units\n",
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"<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/units.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [],
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"source": [
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"# !pip install deeptrack # Uncomment if running on Colab/Kaggle."
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"This advanced tutorial introduces the backend.units module."
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 1. What is `units`?\n",
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"\n",
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"The `units` module defines functions and a class to handle unit conversions."
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 2. Convert meters to centimeters and millimeters"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{'length': <Quantity(2500.0, 'millimeter')>, 'width': <Quantity(120.0, 'centimeter')>}\n"
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]
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}
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],
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"source": [
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"from deeptrack.backend import units\n",
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"from pint import UnitRegistry\n",
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"\n",
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"ureg = UnitRegistry()\n",
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"\n",
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"# Create a conversion table\n",
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"conversions = units.ConversionTable(\n",
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" length=(ureg.meter, ureg.millimeter), \n",
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" width=(ureg.meter, ureg.centimeter),\n",
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")\n",
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"\n",
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"values = {\n",
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" \"length\": 2.5, \n",
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" \"width\": 1.2, \n",
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"}\n",
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"\n",
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"converted_values = conversions.convert(**values)\n",
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"print(converted_values)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 3. Convert a list of velocities"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{'velocity': <Quantity([18. 36. 54.], 'kilometer / hour')>}\n"
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]
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}
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],
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"source": [
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"from deeptrack.backend import units\n",
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"from pint import UnitRegistry\n",
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"\n",
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"ureg = UnitRegistry()\n",
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"\n",
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"# From m/s to km/h.\n",
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"conversions = units.ConversionTable(\n",
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" velocity=(\n",
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" ureg.meter / ureg.second,\n",
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" ureg.kilometer / ureg.hour,\n",
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" )\n",
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")\n",
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"\n",
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"values = {\n",
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" \"velocity\": [5, 10, 15], \n",
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"}\n",
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"\n",
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"converted_values = conversions.convert(**values)\n",
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"print(converted_values)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 4. Convert temperature"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 36,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{'temperature': <Quantity(26.85, 'degree_Celsius')>}\n"
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]
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}
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],
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"source": [
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"from deeptrack.backend import units\n",
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"from pint import UnitRegistry\n",
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"\n",
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"ureg = UnitRegistry()\n",
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"\n",
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"conversions = units.ConversionTable(\n",
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" temperature=(ureg.kelvin, ureg.celsius), \n",
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")\n",
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"\n",
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"values = {\n",
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" \"temperature\": 300,\n",
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"}\n",
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"\n",
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"converted_values = conversions.convert(**values)\n",
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"print(converted_values)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 5. Converting multiple quantities"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{'mass': <Quantity(5.0, 'kilogram')>, 'force': <Quantity(11.2404472, 'force_pound')>, 'energy': <Quantity(239.005736, 'calorie')>}\n"
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]
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}
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],
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"source": [
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"from deeptrack.backend import units\n",
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"from pint import UnitRegistry\n",
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"\n",
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"ureg = UnitRegistry()\n",
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"\n",
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"conversions = units.ConversionTable(\n",
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" mass=(ureg.gram, ureg.kilogram),\n",
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" force=(ureg.newton, ureg.pound_force),\n",
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" energy=(ureg.joule, ureg.calorie),\n",
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")\n",
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"\n",
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"values = {\n",
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" \"mass\": 5000,\n",
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" \"force\": 50,\n",
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" \"energy\": 1000,\n",
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"}\n",
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"\n",
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"converted_values = conversions.convert(**values)\n",
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"print(converted_values)"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.9.13"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

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