Update blueprints docs with correct listener example
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@ -107,13 +107,13 @@ Available events are:
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```python
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bp = Blueprint('my_blueprint')
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@bp.listen('before_server_start')
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async def setup_connection():
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@bp.listener('before_server_start')
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async def setup_connection(app, loop):
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global database
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database = mysql.connect(host='127.0.0.1'...)
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@bp.listen('after_server_stop')
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async def close_connection():
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@bp.listener('after_server_stop')
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async def close_connection(app, loop):
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await database.close()
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```
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