VB.NET namespaces in UiPath Studio represent containers that store different types of data. They enable you to easily define the scope of your expressions, variables and arguments.
For example, if you have the System.Data namespace imported, you can further use
DataRow and other classes that are available in it, without having to always type
System.Data.DataTable and so on.
All imported namespaces are displayed in the Imports panel. Note that some namespaces are automatically imported when you browse for a .Net type variable or argument.
To open this panel, click Imports in the Designer panel.