What does "DeepPropInspector.AcadPie.1" mean?

[ztkboj58623]

Acad::ErrorStatus AsdkPie::subGetClassID (CLSID *pClsid) const {
assertReadEnabled () ;
if ( SUCCEEDED( ::CLSIDFromProgID (L"DeepPropInspector.AcadPie.1", pClsid) ) )
return (Acad::eOk) ;
return (AcDbCircle::getClassID (pClsid)) ;
}

For a custom entity inheriting from AcDbLine, if I only want to change the entity type name without modifying other content in the OPM panel, what is the simplest way to achieve this?