How does debugging python using VSCode shows 400 variables in watch window?

When I debug Python code using VSCode, I want to entire variables in WATCH window. However, the default configuration is set to show only 300 variables. Would you tell me how to change the configuration? Below is my launch.json code.

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [

     {
         "name": "Launch Package",
         "type": "go",
         "request": "launch",
         "mode": "debug",         
         "dlvLoadConfig": {
             "followPointers": true,
             "maxVariableRecurse": 1,
             "maxStringLen": 400,
             "maxArrayValues": 400,
             "maxStructFields": -1
         }            
     },
     {
         "name": "Python: Current File",
         "type": "python",
         "request": "launch",
         "program": "${file}",
         "console": "integratedTerminal"
      }
   ]
}

Thanks!