List of cadastral quarters in the Russian Federation

Structure:
An array of objects, where each object represents information about the cadastral region. Each object contains the following fields:
- "rayon": a string value representing the cadastral district.
- "total": a numerical value indicating the total number of cadastral blocks in a given area.
- "items": a list of strings, where each string represents the name of the cadastral quarter.

JSON Schema
```
{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "rayon": {
        "type": "string"
      },
      "total": {
        "type": "integer"
      },
      "items": {
        "type": "array",
        "items": {
          "type": "string"
        }
      }
    },
    "required": ["rayon", "total", "items"]
  }
}
```

Pydantic

```
from __future__ import annotations

from typing import List

from pydantic import BaseModel


class ModelItem(BaseModel):
    rayon: str
    total: int
    items: List[str]


class Model(BaseModel):
    __root__: List[ModelItem]

```