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Hello team, for some tables I am manually using MetadataChangeEventClass for ingestion. how do I start debugging MCE format mismatch from AvroTypeException  error, I can't seem to find which record has the error. What keyword should I search to find in the error log?
```avro.io.AvroTypeException: The datum MetadataChangeEventClass({'auditHeader': None, 'proposedSnapshot': ... ```

Here's a bit context for what I'm doing. I've doing it by trial and error for other aspects, but I'm kind of stuck with this aspect (SchemaMetadataClass)
```fields = [SchemaFieldClass(...), ...]
schema_metadata = SchemaMetadataClass(fields=fields,...)
mce = MetadataChangeEventClass(aspects=[schema_metadata], ... )
mce = mce.to_obj() 
json.dump(mce, ...)```

Hi Kevin, I think this can help - <https://github.com/linkedin/datahub/blob/master/metadata-ingestion%2Fexamples%2Flibrary%2Fdataset_schema.py>

The model is explained under Entities tab in docs. e.g. for <https://datahubproject.io/docs/generated/metamodel/entities/dataset>  which might help

Thank you everyone, I found out the error is in schemafieldclass. A single field has None type as the description.