code: def grab_names_from_emails(email_list):
      
      all_staff = STAFF_LIST
  
      emails_names = {}
  
      for email in email_list:
          for person in all_staff:
              if email == person['email'] and email not in emails_names:
                  emails_names[email] = person['fullName']
                  # print emails_names[email]
  
      for email in email_list:
          matched = False
          for assignment in emails_names:
              if email == assignment:
                  matched = True
          if not matched:
              emails_names[email] = email
  
      return emails_names
docs: Return a dictionary mapping names to email addresses.
  
      Only gives a response if the email is found
      in the staff API/JSON.
  
      Expects an API of the format =
      [
          {
              'email': 'foo@bar.net',
              ...
              'fullName': 'Frank Oo'
          },
          ...
      ]