curl -i -X GET "https://api.box.com/2.0/files/12345/tasks" \
     -H "authorization: Bearer <ACCESS_TOKEN>"

client.tasks.get_file_tasks(file.id)

await client.tasks.getFileTasks(file.id);

try await client.tasks.getFileTasks(fileId: file.id)

client.getTasks().getFileTasks(file.getId())

await client.Tasks.GetFileTasksAsync(fileId: file.Id);

{
  "total_count": 5000,
  "entries": [
    {
      "id": "11446498",
      "type": "task",
      "item": {
        "id": "12345",
        "type": "file",
        "etag": "1",
        "sequence_id": "3",
        "name": "Contract.pdf",
        "sha1": "85136C79CBF9FE36BB9D05D0639C70C265C18D37",
        "file_version": {
          "id": "12345",
          "type": "file_version",
          "sha1": "134b65991ed521fcfe4724b7d814ab8ded5185dc"
        }
      },
      "due_at": "2012-12-12T10:53:43-08:00",
      "action": "review",
      "message": "Legal review",
      "task_assignment_collection": {
        "total_count": 100,
        "entries": [
          {
            "id": "11446498",
            "type": "task_assignment",
            "item": {
              "id": "12345",
              "type": "file",
              "etag": "1",
              "sequence_id": "3",
              "name": "Contract.pdf",
              "sha1": "85136C79CBF9FE36BB9D05D0639C70C265C18D37",
              "file_version": {
                "id": "12345",
                "type": "file_version",
                "sha1": "134b65991ed521fcfe4724b7d814ab8ded5185dc"
              }
            },
            "assigned_to": {
              "id": "11446498",
              "type": "user",
              "name": "Aaron Levie",
              "login": "ceo@example.com"
            },
            "message": "Please review",
            "completed_at": "2012-12-12T10:53:43-08:00",
            "assigned_at": "2012-12-12T10:53:43-08:00",
            "reminded_at": "2012-12-12T10:53:43-08:00",
            "resolution_state": "incomplete",
            "assigned_by": {
              "id": "11446498",
              "type": "user",
              "name": "Aaron Levie",
              "login": "ceo@example.com"
            }
          }
        ]
      },
      "is_completed": true,
      "created_by": {
        "id": "11446498",
        "type": "user",
        "name": "Aaron Levie",
        "login": "ceo@example.com"
      },
      "created_at": "2012-12-12T10:53:43-08:00",
      "completion_rule": "all_assignees"
    }
  ]
}

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}