espocrm-base/application/Espo/Modules/Crm/Resources/metadata/selectDefs/Lead.json

{
    "primaryFilterClassNameMap": {
        "actual": "Espo\\Modules\\Crm\\Classes\\Select\\Lead\\PrimaryFilters\\Actual",
        "active": "Espo\\Modules\\Crm\\Classes\\Select\\Lead\\PrimaryFilters\\Actual",
        "converted": "Espo\\Modules\\Crm\\Classes\\Select\\Lead\\PrimaryFilters\\Converted"
    }
}