Changes to Upload from base64

added the non-success response with the status 503

added the new document enum value to the oneOf[#/components/schemas/PdfUploadResult]/data/type response property for the response status 201

added the new document enum value to the oneOf[#/components/schemas/PdfUploadResult]/slides/items/type response property for the response status 201

added the new document enum value to the oneOf[subschema #1]/data/type response property for the response status 201

added the new optional request property pdf_mode

added the optional property oneOf[#/components/schemas/PdfUploadResult]/data/pdf to the response with the 201 status

added the optional property oneOf[#/components/schemas/PdfUploadResult]/pdf/id to the response with the 201 status

added the optional property oneOf[#/components/schemas/PdfUploadResult]/pdf/name to the response with the 201 status

added the optional property oneOf[#/components/schemas/PdfUploadResult]/pdf/size_bytes to the response with the 201 status

added the optional property oneOf[#/components/schemas/PdfUploadResult]/pdf/url to the response with the 201 status

added the optional property oneOf[#/components/schemas/PdfUploadResult]/slides/items/pdf to the response with the 201 status

added the optional property oneOf[subschema #1]/data/pdf to the response with the 201 status