44             raise_on_error=True, cwd=None, **kwargs):  argument
74     kwargs['stdout'] = None
75     kwargs['stderr'] = None
79             kwargs['stdin'] = last_pipe.stdout
81             kwargs['stdin'] = open(infile, 'rb')
83             kwargs['stdout'] = cros_subprocess.PIPE
85             kwargs['stdout'] = open(outfile, 'wb')
87             kwargs['stderr'] = cros_subprocess.PIPE
90             last_pipe = cros_subprocess.Popen(cmd, cwd=cwd, **kwargs)
110 def Output(*cmd, **kwargs):  argument
111     raise_on_error = kwargs.get('raise_on_error', True)
114 def OutputOneLine(*cmd, **kwargs):  argument
115     raise_on_error = kwargs.pop('raise_on_error', True)
118             **kwargs).stdout.strip())
120 def Run(*cmd, **kwargs):  argument
121     return RunPipe([cmd], **kwargs).stdout