code: def create_SMS(self, files, recipients, body, params={}):
          
          parameters = {}
  
          parser = Parser()
  
          documents = {}
  
          parser.fill_array(documents, files, 'files')
  
          recipients = recipients if isinstance(recipients, list) else [recipients]
  
          index = 0
          for recipient in recipients:
              parser.fill_array(parameters, recipient, 'recipients[%i]' % index)
  
              index += 1
  
          parser.fill_array(parameters, params, '')
  
          parameters['body'] = body
  
          connection = Connection(self.token)
          connection.set_url(self.production, self.SMS_URL)
          connection.add_params(parameters)
          connection.add_files(documents)
  
          return connection.post_request()
docs: Create a new certified sms
  
          @files
               Files to send
                  ex: ['/documents/internet_contract.pdf', ... ]
          @recipients
              A dictionary with the phone and name of the person you want to sign. Phone must be always with prefix
              If you wanna send only to one person:
                 - [{"phone": "34123456", "name": "John"}]
              For multiple recipients, yo need to submit a list of dicts:
                 - [{"email": "34123456, "name": "John"}, {"email":"34654321", "name": "Bob"}]
          @body
              Email body
          @params