1: <?php
2:
3: declare(strict_types=1);
4:
5: /**
6: * This file is part of the Nexus MCP SDK package.
7: *
8: * (c) 2025 John Paul E. Balandan, CPA <paulbalandan@gmail.com>
9: *
10: * For the full copyright and license information, please view
11: * the LICENSE file that was distributed with this source code.
12: */
13:
14: namespace Nexus\Mcp\Schema\Sampling;
15:
16: use Nexus\Mcp\Schema\Arrayable;
17:
18: /**
19: * Hints to use for model selection.
20: *
21: * Keys not declared here are currently left unspecified by the spec and are up to the client to interpret.
22: *
23: * @implements Arrayable<array{name?: non-empty-string}>
24: */
25: final readonly class ModelHint implements \JsonSerializable, Arrayable
26: {
27: /**
28: * @param null|non-empty-string $name A hint for a model name.
29: */
30: public function __construct(
31: public ?string $name = null,
32: ) {}
33:
34: #[\Override]
35: public function toArray(): array
36: {
37: return array_filter([
38: 'name' => $this->name,
39: ], static fn(mixed $value) => null !== $value);
40: }
41:
42: /**
43: * @return template-type<self, Arrayable, 'T'>
44: */
45: #[\Override]
46: public function jsonSerialize(): array
47: {
48: return $this->toArray();
49: }
50: }
51: