message: Update MLIR ODS to match TF head
diff: @@ -4938,19 +4938,26 @@ def TF_UniqueOp : TF_Op<"Unique", [NoSideEffect]> {
  let description = [{
  This operation returns a tensor `y` containing all of the unique elements of `x`
  -sorted in the same order that they occur in `x`. This operation also returns a
  -tensor `idx` the same size as `x` that contains the index of each value of `x`
  -in the unique output `y`. In other words:
  +sorted in the same order that they occur in `x`; `x` does not need to be sorted.
  +This operation also returns a tensor `idx` the same size as `x` that contains
  +the index of each value of `x` in the unique output `y`. In other words:
  `y[idx[i]] = x[i] for i in [0, 1,...,rank(x) - 1]`
  -For example:
  +Examples:
  ```
  # tensor 'x' is [1, 1, 2, 4, 4, 4, 7, 8, 8]
  y, idx = unique(x)
  y ==> [1, 2, 4, 7, 8]
  idx ==> [0, 0, 1, 2, 2, 2, 3, 4, 4]
  +```
  +
  +```
  +# tensor 'x' is [4, 5, 1, 2, 3, 3, 4, 5]
  +y, idx = unique(x)
  +y ==> [4, 5, 1, 2, 3]
  +idx ==> [0, 1, 2, 3, 4, 4, 0, 1]
  ```
  }];
  