def METHOD_NAME(self, reg_name, value):
    """
    Set flow register action (flow will set reg_name to value)
    Args:
        reg_name (string): register name
        value (int): reg value
    Returns:
        Self
    """
    self._reg_sets.append(
        {"type": "SET_FIELD", "field": reg_name, "value": value},
    )
    return self