concatenateAll method
Implementation
Tensor<Vector> concatenateAll(List<Tensor<Vector>> tensors) {
if (tensors.isEmpty) return Tensor<Vector>([]);
if (tensors.length == 1) return tensors[0];
Tensor<Vector> result = tensors[0];
for(int i = 1; i < tensors.length; i++){
result = concatenate(result, tensors[i]);
}
return result;
}