mimeType 

(MIME media type) specifies the applicable multimedia internet mail
extension (MIME) media type

Attribute Information

Source 

<xs:attribute name="mimeType" use="required">
  <xs:annotation>
    <xs:documentation>(MIME media type) specifies the applicable multimedia internet mail extension (MIME) media type</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction>
      <xs:simpleType>
        <xs:list>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:pattern value="(\p{L}|\p{N}|\p{P}|\p{S})+"/>
            </xs:restriction>
          </xs:simpleType>
        </xs:list>
      </xs:simpleType>
      <xs:minLength value="1"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>

Sample