"""Create fact_checker
Generated by Phi-Octopus Eden
2025-11-06 12:14:37.759341
"""

```python
from typing import List, Dict

class FactChecker:
    """
    A simple fact-checking system that verifies if a given statement is true based on predefined facts.
    
    Methods:
        check_fact(statement: str, facts: Dict[str, bool]) -> bool:
            Check if the provided statement matches any known fact in the database.
        
        update_facts(new_facts: Dict[str, bool]):
            Update the internal knowledge base with new or updated facts.
    """
    def __init__(self):
        self.knowledge_base = {}

    def check_fact(self, statement: str, facts: Dict[str, bool]) -> bool:
        """
        Check if the provided statement matches any known fact in the database.

        Args:
            statement (str): The statement to be verified.
            facts (Dict[str, bool]): A dictionary containing known facts where keys are statements and values are boolean.

        Returns:
            bool: True if the statement is found as a true fact, False otherwise.
        """
        for known_fact in facts.keys():
            if statement == known_fact:
                return facts[known_fact]
        return False

    def update_facts(self, new_facts: Dict[str, bool]):
        """
        Update the internal knowledge base with new or updated facts.

        Args:
            new_facts (Dict[str, bool]): A dictionary of new facts to be added to the database.
        """
        self.knowledge_base.update(new_facts)

# Example usage
if __name__ == "__main__":
    fact_checker = FactChecker()
    
    # Initialize some known facts
    initial_facts = {
        "The Earth revolves around the Sun": True,
        "2+2 equals 4": True,
        "Pluto is a planet": False
    }
    
    fact_checker.update_facts(initial_facts)
    
    print(fact_checker.check_fact("The Earth revolves around the Sun", initial_facts))  # Output: True
    print(fact_checker.check_fact("Pluto is not a planet", initial_facts))              # Output: True
    
    new_facts = {
        "The Moon orbits Earth": True,
        "Cats are mammals": True
    }
    
    fact_checker.update_facts(new_facts)
    
    print(fact_checker.check_fact("Cats are mammals", fact_checker.knowledge_base))  # Output: True
```