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r¨ } z tjdt|ƒ|ƒ g }W Y dd}~X nX t|ƒ||< qW |S )a Convert userdata into update config format defined on datasource.
Userdata is in the form of (e.g):
{'network': {'when': ['boot']}}
DataSource config is in the form of:
{EventScope.Network: {EventType.BOOT}}
Take the first and return the second
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