Searches the content by taking given location as a base and retrieves the
contents that located given distance far away in the background
thread.Since it runs on the background thread it does not block
program.It is recommended over circleSearch() method.
Gets the total number of results that match the query in the background
thread.Since it runs on the background thread it does not block
program.It is recommended over count() method.
Adds data to the cloud in the background thread.Since it runs on the
background thread it does not block program.It is recommended over
create() method.