-   Cloud Vision Client LibrariesGet started with the Vision API in your language of choice. 
-   REST API ReferenceCloud Vision REST API Reference. 
-   RPC API ReferenceCloud Vision gRPC API Reference. 
-   OCR Language SupportSupported languages and language hint codes for text and document text detection. 
-   Supported ImagesSupported file types, image sizes, and file sizes. 
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