Retrieve either all triggers or the details of a specific trigger.
            If successful, result can be obtained by a call to getResponse(), and should be a json string.

            @param trigger_id (int) (optional) - Trigger id of the trigger to retrieve details from.
            
            @param (bool) - Boolean indicating whether TriggersGet was successful.

def TriggersGet(self, trigger_id = -1):
        """
            Retrieve either all triggers or the details of a specific trigger.
            If successful, result can be obtained by a call to getResponse(), and should be a json string.

            @param trigger_id (int) (optional) - Trigger id of the trigger to retrieve details from.
            
            @param (bool) - Boolean indicating whether TriggersGet was successful.
        """
        if trigger_id == -1:
            url = '/triggers.json'
        else:
            url = '/triggers/{0}.json'.format(trigger_id)
        if self.__SenseApiCall__(url, 'GET'):
            return True
        else:
            self.__error__ = "api call unsuccessful"
            return False