[BUG]: Exporting the component in YAML format encountered an error.

[jieguangzhou]

Contact Details [Optional]

No response

System Information

main

What happened?

from superduperdb import *
from superduperdb.backends.mongodb import MongoQuery
from pprint import pprint
from superduperdb.components.application import Application

class TestModel(Model):
    def predict(self, text):
        return text

model = TestModel(identifier="test_model")

listener = model.to_listener(key="x", select=MongoQuery(table="docs").find())

pprint(listener.encode())

application = Application(
    identifier="metadata_application",
    components=[listener],
)

pprint(application.encode())
pprint(Document.decode(application.encode()).encode())

application.export("test_application", format="yaml")

Steps to reproduce

No response

Relevant log output

Traceback (most recent call last):
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/test_encode.py", line 28, in <module>
    application.export("test_application", format="yaml")
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/env/lib/python3.11/site-packages/superduperdb/components/component.py", line 405, in export
    yaml.dump(r, stream)
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/env/lib/python3.11/site-packages/ruamel/yaml/main.py", line 594, in dump
    return self.dump_all([data], stream, transform=transform)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/env/lib/python3.11/site-packages/ruamel/yaml/main.py", line 604, in dump_all
    self._context_manager.dump(data)
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/env/lib/python3.11/site-packages/ruamel/yaml/main.py", line 953, in dump
    self._yaml.representer.represent(data)
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/env/lib/python3.11/site-packages/ruamel/yaml/representer.py", line 83, in represent
    node = self.represent_data(data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/env/lib/python3.11/site-packages/ruamel/yaml/representer.py", line 115, in represent_data
    node = self.yaml_representers[None](self, data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/zhouhaha/workspace/SuperDuperDB/superduper-apps/legal_tech_demo/env/lib/python3.11/site-packages/ruamel/yaml/representer.py", line 347, in represent_undefined
    raise RepresenterError(f'cannot represent an object: {data!s}')
ruamel.yaml.representer.RepresenterError: cannot represent an object: {'_base': '?metadata_application', '_builds': {'dill': {'_path': 'superduperdb/components/datatype/get_serializer', 'method': 'dill', 'encodable': 'artifact'}, '67a99890b4ac06372ce99db9013259253eb5ed71': {'_path': 'superduperdb/components/datatype/Artifact', 'datatype': '?dill', 'blob': '&:blob:67a99890b4ac06372ce99db9013259253eb5ed71'}, 'test_model': {'_object': '?67a99890b4ac06372ce99db9013259253eb5ed71'}, 'docs-find': {'_path': 'superduperdb/backends/mongodb/query/parse_query', 'documents': [], 'query': 'docs.find()'}, 'deb014ca-f311-442a-8245-2bdb75a5f0b1': {'_path': 'superduperdb/components/listener/Listener', 'key': 'x', 'model': '?test_model', 'select': '?docs-find'}, 'metadata_application': {'_path': 'superduperdb/components/application/Application', 'components': ['?deb014ca-f311-442a-8245-2bdb75a5f0b1'], '_literals': ['template']}}, '_files': {}}