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Value model in AdditionalFieldDefinition is an empty class, thus silently drops all data #133
Description
The Value class in additionalfielddefinition.py is defined as an empty Pydantic BaseModel with no fields:
class Value(BaseModel):
r"""Either a string or HypertextField. When OpenAPI Generator supports oneOf, we can semantically enforce this in the docs."""
Because the SDK's BaseModel uses the default Pydantic extra = 'ignore' behavior, any data passed to Value(...) is silently discarded. This means the value field on AdditionalFieldDefinition, which is typed as Optional[List[Value]], cannot actually carry any data.
Impact
This affects any consumer using AdditionalFieldDefinition through either:
EmployeeInfoDefinition.additional_fieldsTeamInfoDefinition.additional_fields
When constructing an AdditionalFieldDefinition with values, the data in the value list is lost:
from glean.api_client.models.additionalfielddefinition import AdditionalFieldDefinition, Value
field = AdditionalFieldDefinition(
key="languages",
value=[Value(anchor="English"), Value(anchor="Spanish")]
)
print(field.model_dump())
# {'key': 'languages', 'value': [{}, {}]}
# ^^ ^^ all data silently dropped
The same applies to HypertextField-style values:
Value(anchor="Glean", hyperlink="https://glean.com")
# Value() — both anchor and hyperlink are silently ignored
This is the associated public docs page: https://developers.glean.com/api/indexing-api/bulk-index-employees. Note that even when passing in data to Value() as a dict, the whole dict object is ignored:
from glean.api_client.models.additionalfielddefinition import AdditionalFieldDefinition
raw = {"key": "username", "value": [{"username": "testuser"}]}
field = AdditionalFieldDefinition(**raw)
dumped = field.model_dump()
print(dumped)
# {'key': 'username', 'value': [{}]}
Activity
steve-calvert-glean commentedon Mar 27, 2026
@ericqzeng thanks for this. We'll take a look ASAP.