code: public PublicIpRequest sourceRestrictions(List<String> sourceRestrictions) {
          List<SourceRestriction> restrictions = new ArrayList<>(sourceRestrictions.size());
          sourceRestrictions.forEach(value -> restrictions.add(new SourceRestriction(value)));
          setSourceRestrictions(restrictions);
          return this;
      }
docs: Specify List of source restrictions in CIDR(Classless Inter-Domain Routing) format
  @param sourceRestrictions list of source restrictions
  @return PublicIp configuration