switch (rep++) {
              case 0:
                return 0;
              case 1:
                return 1;
              case 2:
                return endOfData();
              default:
                throw new AssertionError("Should not have been invoked again");
            }
          }
        };

    assertTrue(iter.hasNext());

                boolean added = seenNodes.add(nodeConnection.node);
                if (added) {
                  return nodeConnection.node;
                }
              }
              return endOfData();
            }
          };
        }

        @Override
        public int size() {
          return adjacentNodeValues.size();
        }

        @Override

                if (entry.getUpperBound().compareTo(subRange.lowerBound) <= 0) {
                  return endOfData();
                }
                return immutableEntry(entry.getKey().intersection(subRange), entry.getValue());
              }
              return endOfData();
            }
          };
        }
      };
    }

    @Override

                if (entry.getUpperBound().compareTo(subRange.lowerBound) <= 0) {
                  return endOfData();
                }
                return immutableEntry(entry.getKey().intersection(subRange), entry.getValue());
              }
              return endOfData();
            }
          };
        }
      };
    }

    @Override

              E element = entry2.getElement();
              if (!multiset1.contains(element)) {
                return immutableEntry(element, entry2.getCount());
              }
            }
            return endOfData();
          }
        };
      }
    };
  }

  /**
   * Returns an unmodifiable view of the intersection of two multisets. In the returned multiset,

              E element = entry2.getElement();
              if (!multiset1.contains(element)) {
                return immutableEntry(element, entry2.getCount());
              }
            }
            return endOfData();
          }
        };
      }
    };
  }

  /**
   * Returns an unmodifiable view of the intersection of two multisets. In the returned multiset,

            }
            while (itr2.hasNext()) {
              E e = itr2.next();
              if (!set1.contains(e)) {
                return e;
              }
            }
            return endOfData();
          }
        };
      }

      @Override
      public boolean contains(@Nullable Object object) {
        return set1.contains(object) || set2.contains(object);
      }

            V value = getValue(index);
            if (value != null) {
              return immutableEntry(getKey(index), value);
            }
          }
          return endOfData();
        }
      };
    }

    // redeclare to help optimizers with b/310253115
    @SuppressWarnings("RedundantOverride")
    @J2ktIncompatible // serialization
    @Override

      this.nextPermutation = new ArrayList<>(list);
      this.comparator = comparator;
    }

    @Override
    protected @Nullable List<E> computeNext() {
      if (nextPermutation == null) {
        return endOfData();
      }
      ImmutableList<E> next = ImmutableList.copyOf(nextPermutation);
      calculateNextPermutation();
      return next;
    }

    void calculateNextPermutation() {
      int j = findNextJ();

          while (!elemItr.hasNext()) {
            if (rangeItr.hasNext()) {
              elemItr = ContiguousSet.create(rangeItr.next(), domain).iterator();
            } else {
              return endOfData();
            }
          }
          return elemItr.next();
        }
      };
    }

    @Override
    @GwtIncompatible("NavigableSet")