'Returns the configuration information of the Lambda function
and a presigned URL link to the .zip file you uploaded with
UploadFunction so you can download the .zip file. Note that
the URL is valid for up to 10 minutes. The configuration
information is the same information you provided as parameters
when uploading the function.
This operation requires permission for the
`lambda:GetFunction` action.
:type function_name: string
:param function_name: The Lambda function name.'

def get_function(self, function_name):

    uri = '/2014-11-13/functions/{0}'.format(function_name)
    return self.make_request('GET', uri, expected_status=200)
