```xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns3:query_definition xmlns:ns2="http://www.i2b2.org/xsd/cell/crc/psm/1.1/" xmlns:ns4="http://www.i2b2.org/xsd/cell/crc/psm/analysisdefinition/1.1/" xmlns:ns3="http://www.i2b2.org/xsd/cell/crc/psm/querydefinition/1.1/">
    <query_name>Antihyperlipide@13:50:07</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <panel>
        <panel_number>1</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>2</hlevel>
            <item_name>Antihyperlipidemic agents</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME5) antihyperlipidemic agents\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ antihyperlipidemic agents</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns3:query_definition>

```

I want to find all patients who have ever taken any antihyperlipidemic agents (medications used to lower high cholesterol or triglyceride levels) at any time in their medical history, regardless of the specificity and accuracy scale, and the results will be displayed in panel 1 with a high level of hierarchy (hlevel = 2). The query is named "Antihyperlipide@13:50:07" and the medication class is "ENC" (encounter).