input: Write a python function to generate a password of length 8 using random.choice.
  assert len(generate_password()) == 8
  assert isinstance(generate_password(), str)
  assert any(c.islower() for c in generate_password())  # At least one lowercase letter
  assert any(c.isupper() for c in generate_password())  # At least one uppercase letter
  assert any(c.isdigit() for c in generate_password())  # At least one digit
  assert any(c in "!@#$%^&*()_+" for c in generate_password())  # At least one special character
output: import random
  import string
  
  def generate_password():
      characters = string.ascii_letters + string.digits + "!@#$%^&*()_+"
      while True:
          password = ''.join(random.choice(characters) for _ in range(8))
          if (any(c.islower() for c in password) and 
              any(c.isupper() for c in password) and 
              any(c.isdigit() for c in password) and 
              any(c in "!@#$%^&*()_+" for c in password)):
              return password