etc.) may break.
    *   Code that uses full path for `get_concrete_function` to trace Keras
        symbolic inputs directly should switch to building matching
        `tf.TensorSpec`s directly and tracing the `TensorSpec` objects.
    *   Code that relies on the exact number and names of the op layers that
        TensorFlow operations were converted into may have changed.

not match private key") } return nil }) return privateKey, nil } } func NewPrivateKey[P Point[P]](c *Curve[P], key []byte) (*PrivateKey, error) { // SP 800-56A Rev. 3, Section 5.6.1.2.2 checks that c <= n – 2 and then // returns d = c + 1. Note that it follows that 0 < d < n. Equivalently, // we check that 0 < d < n, and return d. if len(key) != len(c.N) || isZero(key) || !isLess(key, c.N) { return nil, errors.New("crypto/ecdh: invalid private key") } p, err := c.newPoint().ScalarBaseMult(key) if...

not match private key") } return nil }) return privateKey, nil } } func NewPrivateKey[P Point[P]](c *Curve[P], key []byte) (*PrivateKey, error) { // SP 800-56A Rev. 3, Section 5.6.1.2.2 checks that c <= n – 2 and then // returns d = c + 1. Note that it follows that 0 < d < n. Equivalently, // we check that 0 < d < n, and return d. if len(key) != len(c.N) || isZero(key) || !isLess(key, c.N) { return nil, errors.New("crypto/ecdh: invalid private key") } p, err := c.newPoint().ScalarBaseMult(key) if...

    finally:
        some_cleanup()
```

...that way the `finally` block is run regardless of any exception that might happen.

### Features

* The same PR [#4575](https://github.com/tiangolo/fastapi/pull/4575) from above also fixes the `contextvars` context for the code before and after `yield`. This was the main objective of that PR.