Samarthi Samarthi

## lru_cache.py
from typing import List, Optional, Any

class Node:
    """
        Key value pair in cache
        args:
            key: key of the cached element
            value: value of the cached element
    """
    def __init__(self, key=None, value=None):
	from typing import List, Optional, Any

	class Node:
	"""
	Key value pair in cache
	args:
	key: key of the cached element
	value: value of the cached element
	"""
	def __init__(self, key=None, value=None):