tests/org.eclipse.core.tests.runtime/Plugin_Testing/plugins.version.2/a_2.0.0/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<plugin
  name="Test Plugin"
  id="a"
  version="2.0.0"
  vendor-name="IBM">

  <requires>
    <import plugin="b" version="1.2.0"/>
  </requires>

</plugin>