swapaxes function
Implementation
VARP swapaxes(VARP a, int axis1, int axis2) {
final ndim = a.ndim;
MnnAssert(ndim != null, "a must have a shape");
final axes = List.generate(ndim!, (index) => index);
final tmp = axes[axis1];
axes[axis1] = axes[axis2];
axes[axis2] = tmp;
return F.transpose(a, axes);
}