Hello,
The methods prefixed by a lowercase get_ are automatically generated getter methods (properties).
.NET properties are backed by a pair of .NET methods for reading and writing the property.
The C# compiler automatically names them as get_<PropertyName> and set_<PropertyName>
So, in Python (with .Net), a property that has a parameter can be written like this (2 ways)
opt = Options()
geo_set = element.get_Geometry(opt)
## OR
opt = Options()
geo_set = element.Geometry[opt]