docs: def get_array(xmldoc, name):
  	"""
  	Scan xmldoc for an array named name.  Raises ValueError if not
  	exactly 1 such array is found.
  	"""
  	arrays = getArraysByName(xmldoc, name)
  	if len(arrays) != 1:
  		raise ValueError("document must contain exactly one %s array" % StripArrayName(name))
  	return arrays[0]