returns the result of interpreting the object as an instance of ` bar key ' . this implementation returns null ; returning a non-null result will terminate the switch . concode_field_sep Bz290969Package modelPackage concode_field_sep T caseBar concode_elem_sep T caseFoo concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T defaultCase
T function ( BarKey arg0 ) { return null ; }