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    "# Bond\n",
    "Use can control the bond using `avr.bond.settings`.\n",
    "\n",
    "\n",
    "Delete bond pair\n",
    "----------------\n",
    "\n",
    "For example, we delete the bond between Ca and Ti, and Ti and Ca.\n",
    "\n",
    "```python\n",
    "# delete the bond between Ca and Ti\n",
    "del viewer.avr.bond.settings['Ti-Ca']\n",
    "# change the bond color between Ti and O\n",
    "viewer.avr.bond.settings['Ti-O'].update({\"color\": \"red\"})\n",
    "# change the maximum bond length between Ti and O\n",
    "viewer.avr.bond.settings['Ti-O'][\"max\"] = 3.0\n",
    "```\n",
    "\n",
    "Add bond pair\n",
    "-------------\n",
    "\n",
    "```python\n",
    "# add the bond between Pt and Au\n",
    "viewer.avr.bond.add_bond_pair('Pt', 'Au', max=3.2)\n",
    "```\n",
    "\n",
    "Hydrogen bond\n",
    "-------------\n",
    "The hydrogen bond can be controlled using `avr.bond.show_hydrogen_bonds`:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "e7d6dbf1",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "1e6c0f138cd147e2889210c7b8807303",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "WeasWidget(children=(<weas_widget.base_widget.BaseWidget object at 0x70f54d6aa310>,))"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from weas_widget import WeasWidget\n",
    "from ase.io import read\n",
    "atoms = read(\"../../examples/urea.cif\")\n",
    "viewer1 = WeasWidget()\n",
    "viewer1.from_ase(atoms)\n",
    "viewer1.avr.model_style = 1\n",
    "viewer1.avr.show_hydrogen_bonds = True\n",
    "viewer1"
   ]
  }
 ],
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