lib/Process.php
public function getStdin(): ProcessOutputStream
    {
        if (!$this->handle || $this->handle->status === ProcessStatus::STARTING) {
            throw new StatusError("Process has not been started or has not completed starting.");
        }

        return $this->handle->stdin;
    }
public function getStdin(): ProcessOutputStream
    {
        if (!$this->handle || $this->handle->status === ProcessStatus::STARTING) {
            throw new StatusError("Process has not been started or has not completed starting.");
        }

        return $this->handle->stdin;
    }
Gets the process input stream (STDIN).

@return ProcessOutputStream