def METHOD_NAME(self):
	"""
	The C# targets may create .xml documentation files::
		def build(bld):
			bld(features='cs', source='My.cs', bintype='library', gen='my.dll', csdoc=True)
			# csdoc is a boolean value
	"""
	csdoc = getattr(self, 'csdoc', self.env.CSDOC)
	if not csdoc:
		return
	node = self.cs_task.outputs[0]
	out = node.change_ext('.xml')
	self.cs_task.outputs.append(out)
	if getattr(self, 'install_task', None):
		self.doc_install_task = self.add_install_files(
			install_to=self.install_task.install_to, install_from=out)
	self.env.append_value('CSFLAGS', '/doc:%s' % out.abspath())