building a node algorithm

[eytangro]

HKube micro-service
algorithm builder
Describe the bug
get an error while running the pipeline
"error":"Error: unable to find mandatory method start"
Expected behavior
should run the pipeline

To Reproduce
Steps to reproduce the behavior:

1. run the pipleine:

{
"name": "nodeb",
"nodes": [{
"nodeName": "n1",
"algorithmName": "nodebuild",
"input": [
5
]
}]

}

Additional context
function:

function start(args) {
return args[input][0]
}