<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Thu Apr 30 11:00:14 UTC 2026 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#IndividualsOnly" roleURI="http://xbrl.sec.gov/ecd/role/IndividualsOnly"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpAdjustmentsOnly" roleURI="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>
  <definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <loc xlink:type="locator" xlink:label="lat_DavidLillisMember" xlink:href="lat-20260610.xsd#lat_DavidLillisMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="lat_DavidLillisMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="lat_JasonKeyesMember" xlink:href="lat-20260610.xsd#lat_JasonKeyesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="lat_JasonKeyesMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="lat_MarcLandyMember" xlink:href="lat-20260610.xsd#lat_MarcLandyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="lat_MarcLandyMember" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ecd_AllAdjToCompMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllAdjToCompMember"/>
    <loc xlink:type="locator" xlink:label="lat_EquityVestingDuringFYMember" xlink:href="lat-20260610.xsd#lat_EquityVestingDuringFYMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllAdjToCompMember" xlink:to="lat_EquityVestingDuringFYMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="lat_UnvestedEquityAtFYEMember" xlink:href="lat-20260610.xsd#lat_UnvestedEquityAtFYEMember"/>
<!-- [WMV7][cXAO80diAZYBi8ad6bQBtnGeOeZaCi1VwBtHgsWZ4IA6hd2Ii6m27SpYklwcM1GgEtALnCGfF0/ko3txIfH4hBe0FwhmgKUccvxEYbjeYC3m2wp8/lg2TNjdQiL7fEj6HmIriXSa2vUztpuLFlDbT/a945xtWws56bnqfNlzRlwZe5jH2dyRThuXEbos45oagyPtXBKIOJGk1LEvX2LS2RurACOxIL1W4Vs7YYaY9Vwx8LUBynZ5568yOyciNJw9qC7BmiqRDrd+ZFM7MkAKouW4Jat8V4EG0v8MY0KayRrGpXhx2JEi3HzS9gjxCu64g2FpOM2cbVO4wE1XEorhIlZTeJ3oueQvXk5GJiNaSXFf] CSR-->
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllAdjToCompMember" xlink:to="lat_UnvestedEquityAtFYEMember" order="7" xbrldt:closed="true"/>
  </definitionLink>
</linkbase>
