abs:
    description: |
        Returns absolute value of a tensor element-wise.

        .. math::

            out_i = |input_i|

        Args:
            input (Tensor): The input tensor. The shape of tensor is
                :math:`(N,*)` where :math:`*` means, any number of additional dimensions.

        Returns:
            Tensor, has the same shape as the `input`.

        Raises:
            TypeError: If `input` is not a Tensor.

        Supported Platforms:
            ``Ascend`` ``GPU`` ``CPU``

        Examples:
            >>> import mindspore
            >>> import numpy as np
            >>> from mindspore import Tensor, ops
            >>> input = Tensor(np.array([-1.0, 1.0, 0.0]), mindspore.float32)
            >>> output = ops.abs(input)
            >>> print(output)
            [1. 1. 0.]