log1p:
    description: |
        Returns the natural logarithm of one plus the input tensor element-wise.

        .. math::
            out_i = \{log_e}(input_i + 1)

        Args:
            input (Tensor): The input tensor. The value must be greater than -1.

        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
            >>> x = Tensor(np.array([1.0, 2.0, 4.0]), mindspore.float32)
            >>> output = ops.log1p(x)
            >>> print(output)
            [0.6931472 1.0986123 1.609438 ]