(PECL swish >= 0.1.0) Prepare a search query
(PECL swish >= 0.1.0) Get the list of properties for the index
(PECL swish >= 0.1.0) Execute a query and return results object
(PECL swish >= 0.1.0) Get the list of meta entries for the index
(PECL swish >= 0.1.0) Construct a Swish object