https://docs.aws.amazon.com/cdk/api/v2/java/software/amazon/awscdk/services/lex/CfnBot.DTMFSpecificationProperty.Jsii$Proxy.html
CfnBot.DTMFSpecificationProperty.Jsii$Proxy (AWS CDK 2.254.0 API)
declaration: package: software.amazon.awscdk.services.lex, class: CfnBot, interface: DTMFSpecificationProperty, class: Jsii$Proxy
aws cdkjsiiproxyapi