code: public DBCursor find(@Nullable final DBObject query, final DBCollectionFindOptions options) {
          return new DBCursor(this, query, options);
      }
docs: Select documents in collection and get a cursor to the selected documents.
  
  @param query         the selection criteria using query operators. Omit the query parameter or pass an empty document to return all
  documents in the collection.
  @param options       the options for the find operation.
  @return A cursor to the documents that match the query criteria
  @mongodb.driver.manual tutorial/query-documents/ Querying
  @since 3.4