public function add_install_settings_fields( $type ) {
		if ( ( empty( static::$options['bitbucket_username'] ) ||
			empty( static::$options['bitbucket_password'] ) ) ||

			( empty( static::$options['bitbucket_server_username'] ) ||
			empty( static::$options['bitbucket_server_password'] ) )
		) {
			add_settings_field(
				'bitbucket_username',
				esc_html__( 'Bitbucket Username', 'github-updater' ),
				[ $this, 'bitbucket_username' ],
				'github_updater_install_' . $type,
				$type
			);

			add_settings_field(
				'bitbucket_password',
				esc_html__( 'Bitbucket Password', 'github-updater' ),
				[ $this, 'bitbucket_password' ],
				'github_updater_install_' . $type,
				$type
			);
		}

		add_settings_field(
			'is_private',
			esc_html__( 'Private Bitbucket Repository', 'github-updater' ),
			[ $this, 'is_private_repo' ],
			'github_updater_install_' . $type,
			$type
		);
	}