code: public ContextCloseable beginFilterList(final FilterList lst) {
      Preconditions.checkNotNull(lst);
      filterListStack.push(lst);
      return new ContextCloseable() {
        @Override
        public void close() {
          Preconditions.checkState(filterListStack.peek().equals(lst));
          filterListStack.pop();
        }
      };
    }
docs: <p>beginFilterList.</p>
  
  @param lst a {@link org.apache.hadoop.hbase.filter.FilterList} object.
  @return a {@link com.google.cloud.bigtable.hbase.adapters.filters.FilterAdapterContext.ContextCloseable} object.