@Override
  Set<V> createUnmodifiableEmptyCollection() {
    return emptySet();
  }

  @Override
  <E extends @Nullable Object> Collection<E> unmodifiableCollectionSubclass(
      Collection<E> collection) {
    return unmodifiableSet((Set<E>) collection);
  }

  @Override
  Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection) {
    return new WrappedSet(key, (Set<V>) collection);
  }

        // Return just the base; caller is responsible for placing ctx at the correct absolute offset.
        // We will return a composite buffer from the test when building the full packet.
        // To keep this helper simple, return base and let the caller append/pad and inject ctx.
        return base;
    }

    /**

        @Override
        public String getId() {
            return id;
        }

        @Override
        public String getUrl() {
            return url;
        }

        @Override
        public String getMetaData() {
            return null;
        }

        @Override
        public String getEncoding() {
            return null;
        }

        @Override

    }

    @Override
    public int hashCode() {
        return hashCode;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

        if (!UrlSource.class.equals(obj.getClass())) {
            return false;
        }

				checks[name] = CheckConstraint{Name: name, Constraint: chk, Field: field}
			}
		}
	}
	return checks
}

type UniqueConstraint struct {
	Name  string
	Field *Field
}

func (uni *UniqueConstraint) GetName() string { return uni.Name }

func (uni *UniqueConstraint) Build() (sql string, vars []interface{}) {
	return "CONSTRAINT ? UNIQUE (?)", []interface{}{clause.Column{Name: uni.Name}, clause.Column{Name: uni.Field.DBName}}

		s.tr = s.tr[:len(s.tr)-1]
		tok = s.Next()
	}
	return tok
}

func (s *Stack) Text() string {
	return s.tr[len(s.tr)-1].Text()
}

func (s *Stack) File() string {
	return s.Base().Filename()
}

func (s *Stack) Base() *src.PosBase {
	return s.tr[len(s.tr)-1].Base()
}

func (s *Stack) SetBase(base *src.PosBase) {
	s.tr[len(s.tr)-1].SetBase(base)
}

        /**
         * @return CharSequence
         */
        public static CharSequence aaa() {
            return createCharSequence("aaa");
        }

        /**
         * @return CharSequence
         */
        public static CharSequence bbb() {
            return createCharSequence("bbb");
        }

        /**
         * @return CharSequence
         */

	CommentValue sql.NullString
}

// Schema returns the schema of the table.
func (ct TableType) Schema() string {
	return ct.SchemaValue
}

// Name returns the name of the table.
func (ct TableType) Name() string {
	return ct.NameValue
}

// Type returns the type of the table.
func (ct TableType) Type() string {
	return ct.TypeValue
}

// Comment returns the comment of current table.

        public Class<T> type() {
            return type;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }
            if (o == null || getClass() != o.getClass()) {
                return false;
            }
            Key<?> key = (Key<?>) o;
            return Objects.equals(id, key.id) && Objects.equals(type, key.type);

		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
		w.Write(buf)
		return
	} else if infoPolicyAPIVersion != "" {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errors.New("invalid version parameter 'v' supplied")), r.URL)
		return
	}

	// Return the older API response value of just the policy json.