iceberg relocated can not import

[????]

dear iceberg developer
      I can not import the  relocated  as 
follows
 import 
org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
import org.apache.iceberg.relocated.com.google.common.collect.Lists;
import org.apache.iceberg.relocated.com.google.common.collect.Maps;
import org.apache.iceberg.relocated.com.google.common.collect.Sets;


how could I import the relocated modle 


thanks