def retrieve(self, id) :
_, _, task = self.http_client.get("<STR_LIT>".format(id=id))<EOL>return task<EOL>
Retrieve a single task

Returns a single task available to the user according to the unique task ID provided
If the specified task does not exist, this query will return an error

:calls: ``get /tasks/{id}``
:param int id: Unique identifier of a Task.
:return: Dictionary that support attriubte-style access and represent Task resource.
:rtype: dict