import * as drs from "drslib";

class Increment implements drs.IAction<number, number> {
    do(p: number) {
        return p + 1
    }
}

const action = new drs.Chain<number>()
    .join(new drs.Run((p) => p + "0"))         // p: number
    .join(new drs.Run((p) => parseInt(p) + 1)) // p: string
    .join(new Increment())
    .create();

const result: number = action.do(1); //result = 12