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

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

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