docs: def isValid( self ):
          """
          Returns whether or not the filepath exists on the system. \
          In the case of a SaveFile, only the base folder \
          needs to exist on the system, in other modes the actual filepath must \
          exist.
          
          :return     <bool>
          """
          check = nativestring(self._filepathEdit.text()).split(os.path.pathsep)[0]
          if ( self.filepathMode() == XFilepathEdit.Mode.SaveFile ):
              check = os.path.dirname(check)
          
          return os.path.exists(check)