Get list of Step Types from Type Palette .ini file (C#)

[bpo]

I am trying to get a list of the step types that I created in a custom Type. I load the file in C# using sequenceContext.Engine.GetTypePaletteFileList(),

then I get the reference to the PropertyObjectFile of my custom made type palette file that is loaded into test stand.

From here, how do I access the list of step types? I know there is a PropertyObjectFile.Data method, but I do not know what to do with it to access specific Step Types.