"""
Meta-knowledge extraction utilities.
"""

from typing import Any


class MetaKnowledgeExtractor:
    """Extract meta-knowledge from content."""

    def __init__(self, config: dict[str, Any] | None = None):
        """Initialize the meta-knowledge extractor."""
        self.config = config or {}

    def extract(self, content: str) -> dict[str, Any]:
        """Extract meta-knowledge from content."""
        # Placeholder implementation
        return {"keywords": [], "entities": [], "summary": content[:100] + "..." if len(content) > 100 else content}

    def extract_batch(self, contents: list[str]) -> list[dict[str, Any]]:
        """Extract meta-knowledge from multiple contents."""
        return [self.extract(content) for content in contents]
