For example,

E-RABToBeSetupItemCtxtSUReqIEs S1AP-PROTOCOL-IES ::= {
    { ID id-E-RABToBeSetupItemCtxtSUReq CRITICALITY reject TYPE E-RABToBeSetupItemCtxtSUReq PRESENCE mandatory },
    ...
}

generate :

static const asn_ioc_cell_t asn_IOS_E_RABToBeSetupItemCtxtSUReqIEs_1_rows[] = {
};