*   Fixes an integer truncation vulnerability in code using the work sharder
    API,
    ([CVE-2020-15202](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15202))
*   Fixes a format string vulnerability in `tf.strings.as_string`,
    ([CVE-2020-15203](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15203))
*   Fixes segfault raised by calling session-only ops in eager mode,

      }
      op {
        name: "RestoreV2"
        input_arg {
          name: "prefix"
          type: DT_STRING
        }
        input_arg {
          name: "tensor_names"
          type: DT_STRING
        }
        input_arg {
          name: "shape_and_slices"
          type: DT_STRING
        }
        output_arg {
          name: "tensors"
          type_list_attr: "dtypes"
        }

[https://www.tensorflow.org/tutorials/representation/unicode](Working with Unicode text)
tutorial.

Examples:

>>> tf.strings.as_string([3, 2])
<tf.Tensor: shape=(2,), dtype=string, numpy=array([b'3', b'2'], dtype=object)>
>>> tf.strings.as_string([3.1415926, 2.71828], precision=2).numpy()
array([b'3.14', b'2.72'], dtype=object)
  }];

  let arguments = (ins