Hello,

I have a block that emits pmt::dict messages.  I'd like to connect it to a
PDU to Tagged Stream block.

My problem is that a dict isn't a pair and I run into this error:

https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/pdu_to_tagged_stream_impl.cc#L63

If I place the dict in a pair, I won't get that error but I do get another
error telling me my data needs to be a uniform vector.

The dict has multiple data types in it so I'm not sure what the best way to
proceed is.  What's a good way to (a good way to GR I mean) structure my
messages?  Make them pairs where the first part is metadata and the second
is a uniform vector?

Thanks,
Devin
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