https://docs.cloud.google.com/nodejs/docs/reference/documentai/latest/documentai/protos.google.cloud.documentai.v1beta3.document.page.isymbol
Interface protos.google.cloud.documentai.v1beta3.Document.Page.ISymbol (9.6.0) | Node.js client...
https://docs.cloud.google.com/nodejs/docs/reference/vision/latest/vision/protos.google.cloud.vision.v1p4beta1.isymbol
Interface protos.google.cloud.vision.v1p4beta1.ISymbol (5.3.5) | Node.js client libraries | Google...
google cloud vision