docs: def send_result(job_id, api_key=None):
      ''' Send results to where requested.
  
      If api_key is provided, it is used, otherwiese
      the key from the job will be used.
      '''
      job_dict = db.get_job(job_id)
      result_url = job_dict.get('result_url')
  
      if not result_url:
  
          # A job with an API key (for using when posting to the callback URL)
          # but no callback URL is weird, but it can happen.
          db.delete_api_key(job_id)
  
          return True
  
      api_key_from_job = job_dict.pop('api_key', None)
      if not api_key:
          api_key = api_key_from_job
      headers = {'Content-Type': 'application/json'}
      if api_key:
          if ':' in api_key:
              header, key = api_key.split(':')
          else:
              header, key = 'Authorization', api_key
          headers[header] = key
  
      try:
          result = requests.post(
              result_url,
              data=json.dumps(job_dict, cls=DatetimeJsonEncoder),
              headers=headers, verify=SSL_VERIFY)
  
          db.delete_api_key(job_id)
  
      except requests.ConnectionError:
          return False
  
      return result.status_code == requests.codes.ok