Analysis
You need to add a new 'using' clause (at the top of your file, if you've been following along):
using ZOSAPI;
using ZOSAPI.Analysis;
'TheAnalyses' (note that it's the plural form) holds all the information needed to access all the Analyses made available to you from ZOS.
I_Analyses TheAnalyses = ThePrimarySystem.Analyses;
Next: