def get_widget_documents(widget_id, version_id=nil, participant_email=nil)
      Echochamber::Request.get_widget_documents(token, widget_id, version_id, participant_email)
    end
def get_widget_documents(widget_id, version_id=nil, participant_email=nil)
      Echochamber::Request.get_widget_documents(token, widget_id, version_id, participant_email)
    end
Retrieves the IDs of the documents associated with widget.

 @param widget_id [String]
 @param version_id [String] The version identifier of widget as provided by get_widget. If not provided then latest version will be used.
 @param participant_email [String] The email address of the participant to be used to retrieve documents
 @return [Hash] Info about widget documents