<element rngui:version="1.2" name="call" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes" xmlns="http://relaxng.org/ns/structure/1.0" xmlns:rngui="http://rngui.org">
  <element name="arguments" rngui:header="Arguments">
    <zeroOrMore rngui:label="Create Argument Pair">
      <element rngui:label='Name'>
        <anyName/>
        <data type="string" rngui:label="Value"/>
      </element>
    </zeroOrMore>
  </element>
  <element name="_attachments">
    <zeroOrMore rngui:label="Create Attachment">
      <element name='_attachment' rngui:label='Attachment'>
        <attribute name="label" rngui:label="Note">
          <data type="string"/>
        </attribute>
        <attribute name="xxx" rngui:label="XXX">
          <data type="string"/>
        </attribute>
        <data type="string" rngui:label="Url"/>
      </element>
    </zeroOrMore>
  </element>
</element>
