cti-python-stix2/docs/guide/creating.ipynb

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48 KiB
Plaintext

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"# Delete this cell to re-enable tracebacks\n",
"import sys\n",
"ipython = get_ipython()\n",
"\n",
"def hide_traceback(exc_tuple=None, filename=None, tb_offset=None,\n",
" exception_only=False, running_compiled_code=False):\n",
" etype, value, tb = sys.exc_info()\n",
" return ipython._showtraceback(etype, value, ipython.InteractiveTB.get_exception_only(etype, value))\n",
"\n",
"ipython.showtraceback = hide_traceback"
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"metadata": {
"collapsed": true,
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"source": [
"# JSON output syntax highlighting\n",
"from __future__ import print_function\n",
"from pygments import highlight\n",
"from pygments.lexers import JsonLexer\n",
"from pygments.formatters import HtmlFormatter\n",
"from IPython.display import HTML\n",
"\n",
"original_print = print\n",
"\n",
"def json_print(inpt):\n",
" string = str(inpt)\n",
" if string[0] == '{':\n",
" formatter = HtmlFormatter()\n",
" return HTML('<style type=\"text/css\">{}</style>{}'.format(\n",
" formatter.get_style_defs('.highlight'),\n",
" highlight(string, JsonLexer(), formatter)))\n",
" else:\n",
" original_print(inpt)\n",
"\n",
"print = json_print"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Creating STIX Content"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Creating STIX Domain Objects\n",
"\n",
"To create a STIX object, provide keyword arguments to the type's constructor:"
]
},
{
"cell_type": "code",
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".highlight .il { color: #666666 } /* Literal.Number.Integer.Long */</style><div class=\"highlight\"><pre><span></span><span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator--dbcbd659-c927-4f9a-994f-0a2632274394&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;labels&quot;</span><span class=\"p\">:</span> <span class=\"p\">[</span>\n",
" <span class=\"s2\">&quot;malicious-activity&quot;</span>\n",
" <span class=\"p\">],</span>\n",
" <span class=\"nt\">&quot;name&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;File hash for malware variant&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;pattern&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;[file:hashes.md5 = &#39;d41d8cd98f00b204e9800998ecf8427e&#39;]&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;valid_from&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829952Z&quot;</span>\n",
"<span class=\"p\">}</span>\n",
"</pre></div>\n"
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"source": [
"from stix2 import Indicator\n",
"\n",
"indicator = Indicator(name=\"File hash for malware variant\",\n",
" labels=[\"malicious-activity\"],\n",
" pattern=\"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\")\n",
"print(indicator)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Certain required attributes of all objects will be set automatically if not provided as keyword arguments:\n",
"\n",
"- If not provided, ``type`` will be set automatically to the correct type. You can also provide the type explicitly, but this is not necessary:"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"indicator2 = Indicator(type='indicator',\n",
" labels=[\"malicious-activity\"],\n",
" pattern=\"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\")"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Passing a value for ``type`` that does not match the class being constructed will cause an error:"
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {},
"outputs": [
{
"ename": "InvalidValueError",
"evalue": "Invalid value for Indicator 'type': must equal 'indicator'.",
"output_type": "error",
"traceback": [
"\u001b[0;31mInvalidValueError\u001b[0m\u001b[0;31m:\u001b[0m Invalid value for Indicator 'type': must equal 'indicator'.\n"
]
}
],
"source": [
"indicator3 = Indicator(type='xxx',\n",
" labels=[\"malicious-activity\"],\n",
" pattern=\"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\")"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"- If not provided, ``id`` will be generated randomly. If you provide an\n",
" ``id`` argument, it must begin with the correct prefix:"
]
},
{
"cell_type": "code",
"execution_count": 6,
"metadata": {},
"outputs": [
{
"ename": "InvalidValueError",
"evalue": "Invalid value for Indicator 'id': must start with 'indicator--'.",
"output_type": "error",
"traceback": [
"\u001b[0;31mInvalidValueError\u001b[0m\u001b[0;31m:\u001b[0m Invalid value for Indicator 'id': must start with 'indicator--'.\n"
]
}
],
"source": [
"indicator4 = Indicator(id=\"campaign--63ce9068-b5ab-47fa-a2cf-a602ea01f21a\",\n",
" labels=[\"malicious-activity\"],\n",
" pattern=\"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\")"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"For indicators, ``labels`` and ``pattern`` are required and cannot be set automatically. Trying to create an indicator that is missing one of these properties will result in an error:"
]
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {},
"outputs": [
{
"ename": "MissingPropertiesError",
"evalue": "No values for required properties for Indicator: (labels, pattern).",
"output_type": "error",
"traceback": [
"\u001b[0;31mMissingPropertiesError\u001b[0m\u001b[0;31m:\u001b[0m No values for required properties for Indicator: (labels, pattern).\n"
]
}
],
"source": [
"indicator = Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"However, the required ``valid_from`` attribute on Indicators will be set to the current time if not provided as a keyword argument.\n",
"\n",
"Once created, the object acts like a frozen dictionary. Properties can be accessed using the standard Python dictionary syntax:"
]
},
{
"cell_type": "code",
"execution_count": 8,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"u'File hash for malware variant'"
]
},
"execution_count": 8,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"indicator['name']"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Or access properties using the standard Python attribute syntax:"
]
},
{
"cell_type": "code",
"execution_count": 9,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"u'File hash for malware variant'"
]
},
"execution_count": 9,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"indicator.name"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Attempting to modify any attributes will raise an error:"
]
},
{
"cell_type": "code",
"execution_count": 10,
"metadata": {},
"outputs": [
{
"ename": "TypeError",
"evalue": "'Indicator' object does not support item assignment",
"output_type": "error",
"traceback": [
"\u001b[0;31mTypeError\u001b[0m\u001b[0;31m:\u001b[0m 'Indicator' object does not support item assignment\n"
]
}
],
"source": [
"indicator['name'] = \"This is a revised name\""
]
},
{
"cell_type": "code",
"execution_count": 11,
"metadata": {},
"outputs": [
{
"ename": "ImmutableError",
"evalue": "Cannot modify 'name' property in 'Indicator' after creation.",
"output_type": "error",
"traceback": [
"\u001b[0;31mImmutableError\u001b[0m\u001b[0;31m:\u001b[0m Cannot modify 'name' property in 'Indicator' after creation.\n"
]
}
],
"source": [
"indicator.name = \"This is a revised name\""
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"To update the properties of an object, see the [Versioning](guide/versioning.ipynb) section."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Creating a Malware object follows the same pattern:"
]
},
{
"cell_type": "code",
"execution_count": 12,
"metadata": {},
"outputs": [
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".highlight .vg { color: #19177C } /* Name.Variable.Global */\n",
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".highlight .vm { color: #19177C } /* Name.Variable.Magic */\n",
".highlight .il { color: #666666 } /* Literal.Number.Integer.Long */</style><div class=\"highlight\"><pre><span></span><span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;malware&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;malware--d7fd675d-94eb-4d95-b0bc-b3c5e28e8ed2&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:56.908Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:56.908Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;name&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;Poison Ivy&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;labels&quot;</span><span class=\"p\">:</span> <span class=\"p\">[</span>\n",
" <span class=\"s2\">&quot;remote-access-trojan&quot;</span>\n",
" <span class=\"p\">]</span>\n",
"<span class=\"p\">}</span>\n",
"</pre></div>\n"
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},
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"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"from stix2 import Malware\n",
"\n",
"malware = Malware(name=\"Poison Ivy\",\n",
" labels=['remote-access-trojan'])\n",
"print(malware)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"As with indicators, the ``type``, ``id``, ``created``, and ``modified`` properties will be set automatically if not provided. For Malware objects, the ``labels`` and ``name`` properties must be provided.\n",
"\n",
"You can see the full list of SDO classes [here](../api/stix2.v20.sdo.rst)."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Creating Relationships\n",
"\n",
"STIX 2 Relationships are separate objects, not properties of the object on either side of the relationship. They are constructed similarly to other STIX objects. The ``type``, ``id``, ``created``, and ``modified`` properties are added automatically if not provided. Callers must provide the ``relationship_type``, ``source_ref``, and ``target_ref`` properties."
]
},
{
"cell_type": "code",
"execution_count": 13,
"metadata": {},
"outputs": [
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" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;relationship&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;relationship--637aa3b1-d4b8-4bc4-85e7-77cc82b198a3&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:34:01.765Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:34:01.765Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;relationship_type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicates&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;source_ref&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator--dbcbd659-c927-4f9a-994f-0a2632274394&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;target_ref&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;malware--d7fd675d-94eb-4d95-b0bc-b3c5e28e8ed2&quot;</span>\n",
"<span class=\"p\">}</span>\n",
"</pre></div>\n"
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"source": [
"from stix2 import Relationship\n",
"\n",
"relationship = Relationship(relationship_type='indicates',\n",
" source_ref=indicator.id,\n",
" target_ref=malware.id)\n",
"print(relationship)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"The ``source_ref`` and ``target_ref`` properties can be either the ID's of other STIX objects, or the STIX objects themselves. For readability, Relationship objects can also be constructed with the ``source_ref``, ``relationship_type``, and ``target_ref`` as positional (non-keyword) arguments:"
]
},
{
"cell_type": "code",
"execution_count": 14,
"metadata": {},
"outputs": [
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".highlight .il { color: #666666 } /* Literal.Number.Integer.Long */</style><div class=\"highlight\"><pre><span></span><span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;relationship&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;relationship--70fe77c2-ab00-4181-a2dc-fe5567d971ca&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:34:03.923Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:34:03.923Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;relationship_type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicates&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;source_ref&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator--dbcbd659-c927-4f9a-994f-0a2632274394&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;target_ref&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;malware--d7fd675d-94eb-4d95-b0bc-b3c5e28e8ed2&quot;</span>\n",
"<span class=\"p\">}</span>\n",
"</pre></div>\n"
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"metadata": {},
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"source": [
"relationship2 = Relationship(indicator, 'indicates', malware)\n",
"print(relationship2)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Creating Bundles\n",
"\n",
"STIX Bundles can be created by passing objects as arguments to the Bundle constructor. All required properties (``type``, ``id``, and ``spec_version``) will be set automatically if not provided, or can be provided as keyword arguments:"
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{
"cell_type": "code",
"execution_count": 15,
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".highlight .il { color: #666666 } /* Literal.Number.Integer.Long */</style><div class=\"highlight\"><pre><span></span><span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;bundle&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;bundle--2536c43d-c874-418e-886c-20a22120d8cb&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;spec_version&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2.0&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;objects&quot;</span><span class=\"p\">:</span> <span class=\"p\">[</span>\n",
" <span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator--dbcbd659-c927-4f9a-994f-0a2632274394&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;labels&quot;</span><span class=\"p\">:</span> <span class=\"p\">[</span>\n",
" <span class=\"s2\">&quot;malicious-activity&quot;</span>\n",
" <span class=\"p\">],</span>\n",
" <span class=\"nt\">&quot;name&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;File hash for malware variant&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;pattern&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;[file:hashes.md5 = &#39;d41d8cd98f00b204e9800998ecf8427e&#39;]&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;valid_from&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829952Z&quot;</span>\n",
" <span class=\"p\">},</span>\n",
" <span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;malware&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;malware--d7fd675d-94eb-4d95-b0bc-b3c5e28e8ed2&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:56.908Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:56.908Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;name&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;Poison Ivy&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;labels&quot;</span><span class=\"p\">:</span> <span class=\"p\">[</span>\n",
" <span class=\"s2\">&quot;remote-access-trojan&quot;</span>\n",
" <span class=\"p\">]</span>\n",
" <span class=\"p\">},</span>\n",
" <span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;relationship&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;relationship--637aa3b1-d4b8-4bc4-85e7-77cc82b198a3&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:34:01.765Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:34:01.765Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;relationship_type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicates&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;source_ref&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator--dbcbd659-c927-4f9a-994f-0a2632274394&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;target_ref&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;malware--d7fd675d-94eb-4d95-b0bc-b3c5e28e8ed2&quot;</span>\n",
" <span class=\"p\">}</span>\n",
" <span class=\"p\">]</span>\n",
"<span class=\"p\">}</span>\n",
"</pre></div>\n"
],
"text/plain": [
"<IPython.core.display.HTML object>"
]
},
"execution_count": 15,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"from stix2 import Bundle\n",
"\n",
"bundle = Bundle(indicator, malware, relationship)\n",
"print(bundle)"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
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"file_extension": ".py",
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