sptbl["switch"] = {     files = {        module = "switch.c",        header = "switch.h",        example = "ex_switch.c",    },     func = {        create = "sp_switch_create",        destroy = "sp_switch_destroy",        init = "sp_switch_init",        compute = "sp_switch_compute",    },     params = {    },     modtype = "module",     description = [[Switch between two signals     By default, the incoming first signal is selected. When triggered, the output signal will switch to the other signal.]],     ninputs = 3,    noutputs = 1,     inputs = {        {            name = "trig",            description = "When non-zero, will switch to the other signal."        },        {            name = "input_1",            description = "Signal input 1. This is the default signal."        },        {            name = "input_2",            description = "Signal input 2."        },    },     outputs = {        {            name = "out",            description = "Signal output."        },    } }