Sequence[.document_understanding.KeyValuePairHint]
User can provide pairs of (key text, value type) to improve
the parsing result.
For example, if a document has a field called "Date" that
holds a date value and a field called "Amount" that may hold
either a currency value (e.g., "$500.00") or a simple number
value (e.g., "20"), you could use the following hints: [
{"key": "Date", value_types: [ "DATE"]}, {"key": "Amount",
"value_types": [ "PRICE", "NUMBER" ]} ]
If the value type is unknown, but you want to provide hints
for the keys, you can leave the value_types field blank.
e.g. {"key": "Date", "value_types": []}
model_version
str
Model version of the form extraction system. Default is
"builtin/stable". Specify "builtin/latest" for the latest
model. For custom form models, specify:
“custom/{model_name}". Model name format is
"bucket_name/path/to/modeldir" corresponding to
"gs://bucket_name/path/to/modeldir" where annotated examples
are stored.