Steven Barclay 18f75869a2 Make 'fromProto' static methods return most specific type ... Minor change for consistency: narrow the signature of some remaining such methods, which have return type 'PersistableEnvelope'. (This excludes some other cases with return type 'NetworkEnvelope'.)		2020-03-04 00:54:48 +08:00
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src	Make 'fromProto' static methods return most specific type	2020-03-04 00:54:48 +08:00