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The Wine – Family
Parameters
Create parameter
doc.FamilyManager.AddParameter
Set parameter value
doc.FamilyManager.Set(parameter, value)
Define formulas doc.FamilyManager.SetFormula(parameter, string)
ParameterTypes enum
Moment, AreaForce, LinearForce, Force, YesNo, URL, Angle, Volume, Area, Number, Integer, Material, Length, Text
With parameters some of the key functionality is: add param method, setting the values of the parameters, we have formulas that can be set thru the API, a list of param types that we can use to create just like the Revit UI supports.

We can create both shared and un-shared parameters using new family creation.