Which class is associated with each field type?

Hi,

is there are a list of classes available, which are assigned to the field types?

I am putting together a test case for checking the correct fields that have been used in the form, and plan to use the class to verify this.

I have “A Complete Guide to Field Types in WPForms” but this just gives details about the field types that are available.

I have looked under the Classes category in Developers documentation but there are no documents listed there. https://wpforms.com/developers/categories/classes/

Thanks