NewFamilyInstance

ItemFactoryBase.NewFamilyInstance(XYZ, FamilySymbol, Level, StructuralType)

location	XYZ	The physical location where the instance is to be placed.
symbol	FamilySymbol	A FamilySymbol object that represents the type of the instance that is to be inserted.
level	Level	The level onto which the FamilyInstance is to be placed.
structuralType	StructuralType	If structural then specify the type of the component.
→ returns	nullNothingnullptr→FamilyInstance	If creation was successful then an instance to the new object is returned, otherwise .