public INDArray matchConditionCount(INDArray in, Condition condition, long... dimensions) {
    NDValidation.validateNumerical("matchConditionCount", "in", in);
    Preconditions.checkArgument(dimensions.length >= 0, "dimensions has incorrect size/length. Expected: dimensions.length >= 0, got %s", dimensions.length);
    return Nd4j.exec(new org.nd4j.linalg.api.ops.impl.reduce.longer.MatchCondition(in, condition, false, dimensions));
  }