BST का न्यूनतम node खोजना

class BinarySearchTree:
  def __init__(self):
    self.root = None

  def find_min(self):
    # Set current_node as the root
    current_node = ____
    # Iterate over the nodes of the appropriate subtree
    while current_node.____:
      # Update current_node
      current_node = current_node.____
    return current_node.data
  
bst = CreateTree()
print(bst.find_min())