I’m new to guidewire and im trying to generate a new unique ID/number for a check in claimcenter.
I’ve read that we need to use SequenceUtil class but ‘ve no idea how to proceed further. Can anyone please provide assistance

package libraries

uses gw.plugin.claimnumbergen.IClaimNumGenAdapter
uses gw.plugin.util.SequenceUtil

class PaymentNumberGenerate implements IClaimNumGenAdapter {

override function generateNewClaimNumber(claim : Claim) : String {
return null
}

override function generateTempClaimNumber(claim : Claim) : String {
return null
}

override function cancelNewClaimNumber(claim : Claim, claimNumber : String) {

}
}