This PR derives the instances Ord, Data, and Typeable classes for the MetadataMap type. The Ord instance is necessary for storing MetadataMap in ordered containers such as Set. The Data and Typeable instances can also be provided for MetadataMap via the stock deriving mechanism and are useful for SYB-style programming.
This PR derives the instances
Ord,Data, andTypeableclasses for theMetadataMaptype. TheOrdinstance is necessary for storingMetadataMapin ordered containers such asSet. TheDataandTypeableinstances can also be provided forMetadataMapvia the stock deriving mechanism and are useful for SYB-style programming.Our
grpc-mqttlibrary depends on orphans of these instances and it would be nice to have them canonicalized here.