Deploy GraphFlow model to Vertex AI. - #201
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Adds `to_vertex_ai` function in `dgf.deploy` to deploy GraphFlow GNN models to Vertex AI Endpoints, including idempotent model registry versioning, GCS artifact verification, and zero-downtime hardware scaling. Also adds `extract_metadata_for_serving_function_signature` and `extract_prediction_schema_for_serving` to `NodePredictionModel` to generate Spanner TRAVERSE_GRAPH compatible signature JSON. PiperOrigin-RevId: 992473817
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Deploy GraphFlow model to Vertex AI.
Adds
to_vertex_aifunction indgf.deployto deploy GraphFlow GNN models to Vertex AI Endpoints, including idempotent model registry versioning, GCS artifact verification, and zero-downtime hardware scaling.Also adds
extract_metadata_for_serving_function_signatureandextract_prediction_schema_for_servingtoNodePredictionModelto generate Spanner TRAVERSE_GRAPH compatible signature JSON.