Google classroom : login account in loop . Data from csv

Hi
How to set loop login from csv file ( in csv file got id and password for about 10 user)

{
      "Command": "csvRead",
      "Target": "test.csv",
      "Value": "",
      "Description": ""
    },
    {
      "Command": "store",
      "Target": "${!csvReadMaxRow}",
      "Value": "rows",
      "Description": ""
    },
    {
      "Command": "times",
      "Target": "${rows}",
      "Value": "rows",
      "Description": ""
    },
    {
      "Command": "store",
      "Target": "${!times}",
      "Value": "!csvReadLineNumber",
      "Description": ""
    },
    {
      "Command": "csvRead",
      "Target": "test.csv",
      "Value": "",
      "Description": ""
    },
    {
      "Command": "echo",
      "Target": "${!COL1}",
      "Value": "",
      "Description": ""
    },
    {
      "Command": "end",
      "Target": "",
      "Value": "",
      "Description": ""
    }