driver-core/src/main/com/mongodb/operation/CommandOperationHelper.java
static void executeCommandAsync(final AsyncReadBinding binding,
                                    final String database,
                                    final CommandCreator commandCreator,
                                    final boolean retryReads,
                                    final SingleResultCallback<BsonDocument> callback) {
        executeCommandAsync(binding, database, commandCreator, new BsonDocumentCodec(), retryReads, callback);
    }
static void executeCommandAsync(final AsyncReadBinding binding,
                                    final String database,
                                    final CommandCreator commandCreator,
                                    final boolean retryReads,
                                    final SingleResultCallback<BsonDocument> callback) {
        executeCommandAsync(binding, database, commandCreator, new BsonDocumentCodec(), retryReads, callback);
    }
/* Async Read Binding Helpers