Method n3

tensorflow/compiler/xla/array4d.h:101–101

  // dimension names used in array3d.
  int64 n4() const { return this->dim(3); }
  int64 n3() const { return this->dim(2); }
  int64 n2() const { return this->dim(1); }
  int64 n1() const { return this->dim(0); }