$this->public_prop_deprecation( $key );
			$val = $legacy_props[ $key ][0];
			return method_exists( $this, $val ) ? $this->$val() : $this->$val;
		} elseif ( 'sql' === $key ) {
			$class = get_called_class();
			_deprecated_function( "Property {$class}::sql", '6.0.0', "{$class}::get_query()" );
			return $this->query;
		}

	}

	/**
	 * Preserve backwards compat for write access to formerly public and removed class properties.
	 *
	 * @since 6.0.0
	 *
	 * @param string $key Property name.
	 * @param mixed  $val Property value.
	 * @return void
	 */
	public function __set( $key, $val ) {