<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_value(self, meta, base_model_meta, mcs_args: McsArgs):
 """overridden to merge with inherited value"""

        if mcs_args.Meta.abstract:
            return None
        value = getattr(base_model_meta, self.name, {}) or {}
        value.update(getattr(meta, self.name, {}))
        return value