def update(options = {})
      options = options.merge(saml_provider_arn: @arn)
      resp = @client.update_saml_provider(options)
      resp.data
    end
def update(options = {})
      options = options.merge(saml_provider_arn: @arn)
      resp = @client.update_saml_provider(options)
      resp.data
    end
@example Request syntax with placeholder values

   saml_provider.update({
     saml_metadata_document: "SAMLMetadataDocumentType", # required
   })
 @param [Hash] options ({})
 @option options [required, String] :saml_metadata_document
   An XML document generated by an identity provider (IdP) that supports
   SAML 2.0. The document includes the issuer's name, expiration
   information, and keys that can be used to validate the SAML
   authentication response (assertions) that are received from the IdP.
   You must generate the metadata document using the identity management
   software that is used as your organization's IdP.
 @return [Types::UpdateSAMLProviderResponse]