How to use the node-opcua-secure-channel.SecurityPolicy.Basic192 function in node-opcua-secure-channel

function securityPolicyLevel(securityPolicy: UAString): number {
    switch (securityPolicy) {
        case SecurityPolicy.None:
            return 0;
        case SecurityPolicy.Basic128:
            return 0;
        case SecurityPolicy.Basic128Rsa15:
            return 0;
        case SecurityPolicy.Basic192:
            return 1;
        case SecurityPolicy.Basic192Rsa15:
            return 2;
        case SecurityPolicy.Basic256:
            return 3;
        case SecurityPolicy.Basic256Rsa15:
            return 3;
        case SecurityPolicy.Basic256Sha256:
            return 3;
        default:
            return 0;
    }
}

function securityPolicyLevel(securityPolicy) {
    switch (securityPolicy) {
        case SecurityPolicy.None:
            return 0;
        case SecurityPolicy.Basic128:
            return 0;
        case SecurityPolicy.Basic128Rsa15:
            return 0;
        case SecurityPolicy.Basic192:
            return 1;
        case SecurityPolicy.Basic192Rsa15:
            return 2;
        case SecurityPolicy.Basic256:
            return 3;
        case SecurityPolicy.Basic256Rsa15:
            return 3;
        case SecurityPolicy.Basic256Sha256:
            return 3;
        default:
            return 0;
    }
}