# process.null_stdio

## Function

Discard child process stdio.

## Syntax

```bt
process(program).null_stdio()
```

## Parameters

No parameters.

## Return value

| Type | Description |
| ------ | ------ |
| Process | Returns the new process builder. |

## Example

```bt
cmd = process('cmd').null_stdio()
result = type(cmd)

// Output: Process
print result
```

## Notes

- Overrides the inherit_stdio setting.
- The console child process window will still be hidden under Windows.
- null_stdio() will discard stdout/stderr, and subsequent stdout_read, stdout_read_lines, stderr_read, and stderr_read_lines will return empty.