Added TopHits aggregation

Author: Spamercz

src/Aggregation/TopHits.php

@@ -0,0 +1,33 @@
+<?php declare(strict_types = 1);
+
+namespace Spameri\ElasticQuery\Aggregation;
+
+class TopHits implements \Spameri\ElasticQuery\Aggregation\LeafAggregationInterface
+{
+
+	private int $size;
+
+
+	public function __construct(
+		int $size
+	) {
+		$this->size = $size;
+	}
+
+
+	public function key(): string
+	{
+		return 'top_hits_' . $this->size;
+	}
+
+
+	public function toArray(): array
+	{
+		return [
+			'top_hits' => [
+				'size' => $this->size,
+			],
+		];
+	}
+
+}