#NEWLINE# def check_output( self , env = None , **kwargs ) : #NEWLINE# #INDENT# 'Returns the output of the executed Go command.\n\n      :param dict env: A custom environment to launch the Go command in.  If `None` the current\n                       environment is used.\n      :param **kwargs: Keyword arguments to pass through to `subprocess.check_output`.\n      :return str: Output of Go command.\n      :raises subprocess.CalledProcessError: Raises if Go command fails.\n      ' #NEWLINE# env = ( env or os . environ ) . copy ( ) #NEWLINE# env . update ( self . env ) #NEWLINE# return subprocess . check_output ( self . cmdline , env = env , ** kwargs )