Promotes an attribute from object to geometry or vice-versa.
The attribute can also be promoted with different modes, such as only the min, max or first found.
|classFrom||integer||class the attribute is from (object or geometry)|
|classTo||integer||class the attribute should be promoted to (object or geometry)|
|mode||integer||mode used to promote the attribute (min, max or first_found)|
|name||string||name of the attribute to promote|