"""Base formatter interface for output data."""

from abc import ABC, abstractmethod
from typing import Any


class BaseFormatter(ABC):
    """Base class for data formatters."""

    @abstractmethod
    def format(self, data: Any) -> str:
        """Format data for output."""
        pass

    @abstractmethod
    def get_file_extension(self) -> str:
        """Get file extension for this format."""
        pass