as $suggestion ) {
			$suggestions[] = $this->cleanSuggestion( $suggestion );
		}

		return array_unique( array_filter( $suggestions ) );
	}

	/**
	 * Cleans the given post content.
	 *
	 * @since 4.5.5
	 *
	 * @param  string $postContent The post content to clean.
	 * @return string              The cleaned post content.
	 */
	private function cleanPostContent( $postContent ) {
		$postContent = strip_shortcodes( wp_strip_all_tags( $postContent ) );
		$postContent = normalize_whitespace( $postContent );
		$postContent = preg_replace( '/\v+/', ' ', $postContent ); // Remove new lines.
		$postContent = aioseo()->helpers->decodeHtmlEntities( $postContent );
		$postContent = wp_trim_words( $postContent, 800 );

		return $postContent;
	}

	/**
	 * Cleans the given title/description suggestion.
	 *
	 * @since 4.5.5
	 *
	 * @param  string $suggestion The suggestion to clean.
	 * @return string             The cleaned suggestion.
	 */
	private function cleanSuggestion( $suggestion ) {
		$suggestion = stripslashes_deep( wp_filter_nohtml_kses( wp_strip_all_tags( $suggestion ) ) );
		$suggestion = aioseo()->helpers->decodeHtmlEntities( $suggestion );
		$suggestion = preg_replace( '/\v+/', '', $suggestion );

		// Trim quotes from beginning/end and redundant whitespace.
		$suggestion = preg_replace( '/^["\']/', '', $suggestion );
		$suggestion = preg_replace( '/["\']$/', '', $suggestion );
		$suggestion = trim( normalize_whitespace( $suggestion ) );

		// Replace the focus KW with the actual focus KW to preserve the casing.
		if ( $this->focusKw ) {
			$escapedFocusKw        = aioseo()->helpers->escapeRegex( $this->focusKw );
			$escapedReplaceFocusKw = aioseo()->helpers->escapeRegexReplacement( $this->focusKw );
			$suggestion            = preg_replace( "/\b{$escapedFocusKw}\b/i", $escapedReplaceFocusKw, $suggestion );
		}

		$suggestion = ucfirst( $suggestion );

		return $suggestion;
	}

	/**
	 * Returns the initial messages for the AI.
	 *
	 * @since 4.5.5
	 *
	 * @return array The initial messages.
	 */
	private function getMessages() {
		$languageCode = get_locale();

		$instructions = [
			'You will be provided with an online blog article.',
		];

		if ( 'en_US' !== $languageCode ) {
			$instructions[2] = "Make sure each suggestion is in the same language as the article. The relevant language code is {$languageCode}.";
		}

		if ( $this->focusKw ) {
			$instructions[3] = "Second, ensure each suggestion contains the keyword '{$this->focusKw}'.";
		}

		$instructions[5] = 'Finally, make sure every suggestion starts and ends with triple double quotes in order to delimit them.';

		switch ( $this->target ) {
			case 'description':
				$instructions[1] = 'First, generate 5 suggestions that can be used as the meta description for the article, based on its text.';
				$instructions[4] = 'Then, make sure each suggestion is between 120 and 160 characters long.';
				break;
			case 'title':
			default:
				$instructions[1] = 'First, generate 5 suggestions that can be used as the SEO title for the article, based on its text.';
				$instructions[4] = 'Then, make sure each suggestion is between 50 and 70 characters long and in title case.';
				break;
		}

		$userMessage = 'Below is the article\'s content, delimited with three consecutive double quotes.' . "\n\n" . '"""' . $this->postContent . '"""';

		ksort( $instructions, SORT_NUMERIC );

		return [
			[
				'role'    => 'system',
				'content' => implode( "\n", array_filter( $instructions ) )
			],
			[
				'role'    => 'user',
				'content' => $userMessage
			]
		];
	}

	/**
	 * Returns the request args.
	 *
	 * @since 4.5.5
	 *
	 * @param  array $messages The messages to send to the AI.
	 * @return array           The request args.
	 */
	private function getRequestArgs( $messages ) {
		$args = [
			'timeout'   => 120,
			'headers'   => [
				'Authorization' => 'Bearer ' . aioseo()->options->advanced->openAiKey,
				'Content-Type'  => 'application/json'
			],
			'body'      => [
				'max_tokens'  => $this->maxTokens,
				'temperature' => $this->temperature,
				'model'       => $this->model,
				'stop'        => null,
				'n'           => $this->amountOfResults,
				'messages'    => $messages
			],
			'sslverify' => false
		];

		$args['body'] = wp_json_encode( $args['body'] );

		return $args;
	}

	/**
	 * Returns the API URL.
	 *
	 * @since 4.3.2
	 *
	 * @return string The API URL.
	 */
	public function getUrl() {
		if ( defined( 'AIOSEO_AI_URL' ) ) {
			return AIOSEO_AI_URL;
		}

		return $this->baseUrl;
	}
}<br />
<b>Fatal error</b>:  Uncaught Error: Class &quot;AIOSEO\Plugin\Pro\Ai\Ai&quot; not found in /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php:322
Stack trace:
#0 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php(97): AIOSEO\Plugin\AIOSEO-&gt;load()
#1 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php(76): AIOSEO\Plugin\AIOSEO-&gt;init()
#2 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php(414): AIOSEO\Plugin\AIOSEO::instance()
#3 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/all_in_one_seo_pack.php(96): aioseo()
#4 /home/valigeria/public_html/wp-settings.php(517): include_once('/home/valigeria...')
#5 /home/valigeria/public_html/wp-config.php(111): require_once('/home/valigeria...')
#6 /home/valigeria/public_html/wp-load.php(50): require_once('/home/valigeria...')
#7 /home/valigeria/public_html/wp-blog-header.php(13): require_once('/home/valigeria...')
#8 /home/valigeria/public_html/index.php(17): require('/home/valigeria...')
#9 {main}
  thrown in <b>/home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php</b> on line <b>322</b><br />