"""Create fact_checker
Generated by Phi-Octopus Eden
2025-11-08 18:00:42.249961
"""

```python
from typing import List, Dict
from functools import lru_cache


class FactChecker:
    """
    A class for checking facts against a predefined knowledge base.
    
    Attributes:
        knowledge_base (Dict[str, str]): A dictionary representing the knowledge base where keys are statements and values are their truth statuses ('True', 'False').
    """

    def __init__(self, knowledge_base: Dict[str, bool]):
        self.knowledge_base = {key: str(value) for key, value in knowledge_base.items()}
    
    @lru_cache(maxsize=None)
    def check_fact(self, statement: str) -> bool:
        """
        Check the truthfulness of a given statement against the knowledge base.
        
        Args:
            statement (str): The statement to verify.
            
        Returns:
            bool: True if the statement is confirmed as true in the knowledge base, False otherwise.
        """
        return self.knowledge_base.get(statement.lower(), "False") == "True"
    
    def get_knowledge(self) -> Dict[str, str]:
        """
        Get a copy of the current knowledge base.
        
        Returns:
            Dict[str, str]: A dictionary containing statements and their truth statuses.
        """
        return self.knowledge_base.copy()


# Example usage
if __name__ == "__main__":
    # Creating a knowledge base with some facts
    knowledge = {
        "The Earth is round": True,
        "Water boils at 100 degrees Celsius at sea level": True,
        "Pluto is a planet": False
    }
    
    fact_checker = FactChecker(knowledge)
    
    print(f"Is the Earth round? {fact_checker.check_fact('The Earth is round')}")  # Expected: True
    print(f"Is Pluto still considered a planet? {fact_checker.check_fact('Pluto is a planet')}")  # Expected: False
    
    updated_knowledge = fact_checker.get_knowledge()
    for statement, truth in updated_knowledge.items():
        print(f"{statement}: {truth}")
```