Get Campaign

{  "id": 0,  "name": "string",  "workflow_id": 0,  "workflow_name": "string",  "state": "string",  "source_type": "string",  "source_id": "string",  "total_rows": 0,  "processed_rows": 0,  "failed_rows": 0,  "created_at": "2019-08-24T14:15:22Z",  "started_at": "2019-08-24T14:15:22Z",  "completed_at": "2019-08-24T14:15:22Z",  "retry_config": {    "enabled": true,    "max_retries": 0,    "retry_delay_seconds": 0,    "retry_on_busy": true,    "retry_on_no_answer": true,    "retry_on_voicemail": true  },  "max_concurrency": 0,  "schedule_config": {    "enabled": true,    "timezone": "string",    "slots": [      {        "day_of_week": 0,        "start_time": "string",        "end_time": "string"      }    ]  },  "circuit_breaker": {    "enabled": false,    "failure_threshold": 0.5,    "window_seconds": 120,    "min_calls_in_window": 5  },  "executed_count": 0,  "total_queued_count": 0,  "parent_campaign_id": 0,  "redialed_campaign_id": 0,  "telephony_configuration_id": 0,  "telephony_configuration_name": "string",  "logs": [    {      "ts": "string",      "level": "string",      "event": "string",      "message": "string",      "details": {}    }  ]}