input: from typing import List
  
  
  def validate_mail_list(mail_list: List[str]) -> bool:
      """ Validates a list of email addresses to check if all are in a valid format.
      An email is considered valid if it follows a basic pattern: [something]@[something].[something]
      >>> validate_mail_list(["example.user@gmail.com", "bad@example"])
      False
      >>> validate_mail_list(["valid@email.com", "another.valid@email.org"])
      True
      """
output:     import re
      pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
      for email in mail_list:
          if not re.match(pattern, email):
              return False
      return True