def is_ava_value_equal(attribute_type, val1, val2):
 return (prep_case_insensitive(val1) == prep_case_insensitive(val2))

def is_ava_value_equal ( attribute_type , val1 , val2 ) : return ( prep_case_insensitive ( val1 ) == prep_case_insensitive ( val2 ) )
return true if and only if the avas are equal .