<?xml version="1.0" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:complexType name="pets">
    <xs:attribute name="amount" type="myInteger" />
  </xs:complexType>

  <xs:simpleType name="myInteger">
    <xs:restriction base="xs:integer">
      <xs:maxInclusive value="8" />
    </xs:restriction>
  </xs:simpleType>
</xs:schema>