docs: def new_param(name, type, value, start = None, scale = None, unit = None, dataunit = None, comment = None):
  	"""
  	Construct a LIGO Light Weight XML Param document subtree.  FIXME:
  	document keyword arguments.
  	"""
  	elem = Param()
  	elem.Name = name
  	elem.Type = type
  	elem.pcdata = value
  	# FIXME:  I have no idea how most of the attributes should be
  	# encoded, I don't even know what they're supposed to be.
  	if dataunit is not None:
  		elem.DataUnit = dataunit
  	if scale is not None:
  		elem.Scale = scale
  	if start is not None:
  		elem.Start = start
  	if unit is not None:
  		elem.Unit = unit
  	if comment is not None:
  		elem.appendChild(ligolw.Comment())
  		elem.childNodes[-1].pcdata = comment
  	return elem