function less_(a, b) {
    let $a = (0, _tensorUtilEnv.convertToTensor)(a, "a", "less", "string_or_numeric");
    let $b = (0, _tensorUtilEnv.convertToTensor)(b, "b", "less", "string_or_numeric");
    [$a, $b] = (0, _tensorUtil.makeTypesMatch)($a, $b);
    (0, _broadcastUtil.assertAndGetBroadcastShape)($a.shape, $b.shape);
    const inputs = {
        a: $a,
        b: $b
    };
    return (0, _engine.ENGINE).runKernel((0, _kernelNames.Less), inputs);
}
Returns the truth value of (a < b) element-wise. Supports broadcasting.

```js
const a = tf.tensor1d([1, 2, 3]);
const b = tf.tensor1d([2, 2, 2]);

a.less(b).print();
```
@param a The first input tensor.
@param b The second input tensor. Must have the same dtype as `a`.

@doc {heading: 'Operations', subheading: 'Logical'}