Merge "Remove _kwmarker" into main

    },

}

def flag(name, partitions, default, _kwmarker = (), appends = False):

def flag(name, partitions, default, *, appends = False):

    """Declare a flag.

    Args:

      name: name of the flag

      partitions: the partitions where this should be recorded.

      default: the default value of the flag.

      _kwmarker: Used to detect argument misuse.

      appends: Whether new values should be append (not replace) the old.

    Returns:

      A dictionary containing the flag declaration.

    """

    # If specified, appends must be a keyword value.

    if _kwmarker != ():

        fail("Too many positional parameters")

    if not partitions:

        fail("At least 1 partition is required")

    if not name.startswith("RELEASE_"):