Complete the following python code

from typing import List 

def has_close_elements(numbers: List[float], threshold: float) -> bool: 
    """ 
    Check if in given list of numbers, are any two numbers closer to each other 
    than given threshold. 
    >>> has_close_elements([1.0, 2.0, 3.0], 0.5) False 
    >>> has_close_elements([1.0, 2.8, 3.0, 4.0, 5.0, 2.0], 0.3) True
    """
