input: Write a function to find all email addresses in a given text using regex.
  assert find_emails("This is an example with two emails: john@example.com, and jane@example.com") == ['john@example.com', 'jane@example.com']
  assert find_emails("Contact us at support@company.com or sales@company.com.") == ['support@company.com', 'sales@company.com']
  assert find_emails("No emails here!") == []
output: import re
  
  def find_emails(text):
      pattern = r'[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}'
      return re.findall(pattern, text)