Add an SNMP community string to a host

        :param host: t_hosts.id or t_hosts.f_ipaddr
        :param f_community: Community string to add
        :param f_access: READ or WRITE
        :param f_version: v1, v2c or v3
        :return: (True/False, t_snmp.id/Error string)

def add(self, host=None, f_community=None, f_access=None, f_version=None):
        """
        Add an SNMP community string to a host

        :param host: t_hosts.id or t_hosts.f_ipaddr
        :param f_community: Community string to add
        :param f_access: READ or WRITE
        :param f_version: v1, v2c or v3
        :return: (True/False, t_snmp.id/Error string)
        """
        return self.send.snmp_add(host, f_community, f_access, f_version)