channelml 

The root element of any ChannelML file. Note this element will only be present in a standalone ChannelML file.
For files covering many levels, neuroml will be the root element

Element Information

Model

notes{0,1} , properties{0,1} , annotation{0,1} , group* , ion* , channel_type* , synapse_type* , ion_concentration*
Children: annotation, channel_type, group, ion, ion_concentration, notes, properties, synapse_type

Attributes

QName Type Fixed Default Use Inheritable Annotation
units Units required 
Unit system of all quantities. Only SI or Physiological units are allowed!

Source 

<xs:element name="channelml" type="ChannelML">
  <xs:annotation>
    <xs:documentation>The root element of any ChannelML file. Note this element will only be present in a standalone ChannelML file. For files covering many levels, neuroml will be the root element</xs:documentation>
  </xs:annotation>
</xs:element>

Sample