import json
import numpy as np

class NumpyEncoder(json.JSONEncoder):
    def default(self, obj):
        if isinstance(obj, np.ndarray):
            return obj.tolist()  # Convert NumPy arrays to lists
        if isinstance(obj, np.generic):
            return obj.item()  # Convert NumPy scalars to native Python types
        return super(NumpyEncoder, self).default(obj)
    
    @staticmethod
    def dumps(data):
        """
        Static method to serialize a Python object into a JSON string using NumpyEncoder.
        
        Args:
            data: The Python object to serialize.
        
        Returns:
            str: A JSON string representation of the object.
        """
        return json.dumps(data, cls=NumpyEncoder)