'Gets information about a deployment group.
:type application_name: string
:param application_name: The name of an existing AWS CodeDeploy
application within the AWS user account.
:type deployment_group_name: string
:param deployment_group_name: The name of an existing deployment group
for the specified application.'

def get_deployment_group(self, application_name, deployment_group_name):

    params = {'applicationName': application_name, 'deploymentGroupName': deployment_group_name}
    return self.make_request(action='GetDeploymentGroup', body=json.dumps(params))
