Umask to be used when running the command. Default None
:kw encoding: Since we return native strings, on python3 we need to
    know the encoding to use to transform from bytes to text.  If you
    want to always get bytes back, use encoding=None.  The default is
    "utf-8".  This does not affect transformation of strings given as
    args.
:kw errors: Since we return native strings, on python3 we need to
    transform stdout and stderr from bytes to text.  If the bytes are
    undecodable in the ``encoding`` specified, then use this error
    handler to deal with them.  The default is ``surrogate_or_strict``
    which means that the bytes will be decoded using the
    surrogateescape error handler if available (available on all
    python3 versions we support) otherwise a UnicodeError traceback
    will be raised.  This does not affect transformations of strings
    given as args.
:kw expand_user_and_vars: When ``use_unsafe_shell=False`` this argument
    dictates whether ``~`` is expanded in paths and environment variables
    are expanded before running the command. When ``True`` a string such as
    ``$SHELL`` will be expanded regardless of escaping. When ``False`` and
    ``use_unsafe_shell=False`` no path or variable expansion will be done.
:kw pass_fds: When running on Python 3 this argument
    dictates which file descriptors should be passed
    to an underlying ``Popen`` constructor. On Python 2, this will
    set ``close_fds`` to False.
:kw before_communicate_callback: This function will be called
    after ``Popen`` object will be created
    but before communicating to the process.
    (``Popen`` object will be passed to callback as a first argument)
:kw ignore_invalid_cwd: This flag indicates whether an invalid ``cwd``
    (non-existent or not a directory) should be ignored or should raise
    an exception.
:kw handle_exceptions: This flag indicates whether an exception will
    be handled inline and issue a failed_json or if the caller should
    handle it.
:returns: A 3-tuple of return code (integer), stdout (native string),
    and stderr (native string).  On python2, stdout and stderr are both
    byte strings.  On python3, stdout and stderr are text strings converted
    according to the encoding and errors parameters.  If you want byte
    strings on python3, use encoding=None to turn decoding to text off.
Nz5Argument 'args' to run_command must be list or stringi