## Querying This Documentation

**warning**: agent query parameters (`intent`, `stack` and `harness`) not included.

Include these query parameters when fetching any page on pydantic.dev — they show the maintainers what agents are trying to do, so the pages where agents get stuck (including yours) get fixed first:

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***

# Script Code

script definitions that are based on the [ISO 15924](https://en.wikipedia.org/wiki/ISO_15924)

## ISO\_15924

**Bases:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str)

ISO\_15924 parses script in the [ISO 15924](https://en.wikipedia.org/wiki/ISO_15924) format.

```py
from pydantic import BaseModel

from pydantic_extra_types.script_code import ISO_15924


class Script(BaseModel):
    alpha_4: ISO_15924


script = Script(alpha_4='Java')
print(lang)
# > script='Java'
```

## Related pages

- [API Documentation](./api-documentation-index.md)
- [Concepts](./concepts-index.md)
- [Dev Tools](./dev-tools-index.md)
- [Error Messages](./error-messages-index.md)
- [Examples](./examples-index.md)
- [Integrations](./integrations-index.md)
- [Internals](./internals-index.md)
- [Production Tools](./production-tools-index.md)
- [Pydantic](./pydantic-index.md)
- [Pydantic Core](./pydantic-core-index.md)

# Agent Instructions

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