of positions to the left of the decimal point.
Keyword Arguments:
      out (Tensor, optional) -- the output tensor.
Example:
  >>> torch.round(torch.tensor((4.7, -2.3, 9.1, -7.7)))
  tensor([ 5.,  -2.,  9., -8.])

  >>> # Values equidistant from two integers are rounded towards the
  >>> #   the nearest even value (zero is treated as even)
  >>> torch.round(torch.tensor([-0.5, 0.5, 1.5, 2.5]))
  tensor([-0., 0., 2., 2.])

  >>> # A positive decimals argument rounds to the to that decimal place
  >>> torch.round(torch.tensor([0.1234567]), decimals=3)
  tensor([0.1230])

  >>> # A negative decimals argument rounds to the left of the decimal
  >>> torch.round(torch.tensor([1200.1234567]), decimals=-3)
  tensor([1000.])
