docs: def doDup(self, WHAT={}, **params):
  		"""This function will perform the command -dup."""
  
  		if hasattr(WHAT, '_modified'):
  			for key, value in WHAT._modified():
  				if WHAT.__new2old__.has_key(key):
  					self._addDBParam(WHAT.__new2old__[key].encode('utf-8'), value)
  				else:
  					self._addDBParam(key, value)
  			self._addDBParam('RECORDID', WHAT.RECORDID)
  			self._addDBParam('MODID', WHAT.MODID)
  		elif type(WHAT) == dict:
  			for key in WHAT:
  				self._addDBParam(key, WHAT[key])
  		else:
  			raise FMError, 'Python Runtime: Object type (%s) given to function doDup as argument WHAT cannot be used.' % type(WHAT)
  
  		if self._layout == '':
  			raise FMError, 'No layout was selected'
  
  		for key in params:
  			self._addDBParam(key, params[key])
  
  		if self._checkRecordID() == 0:
  			raise FMError, 'RecordID is missing'
  
  		return self._doAction('-dup')