Cfgen.IntrinsicsIntrinsic references generated at deployment time, like stack name or AWS Account ID/Region
CloudFormation intrinsics and pseudo-parameters are for using dynamic values in resource properties and stack outputs that are only available at deployment time.
These intrinsics are tokens, so they can be used directly as resource property values or concatenated in strings.
The AWS::AccountId psuedo-parameter for returning the AWS account the stack is deployed in
The AWS::Region psuedo-parameter for returning the AWS account the stack is deployed in
The AWS::NoValue psuedo-parameter for returning an empty value from a Fn::If intrinsic
Split a list of values with delimiter at runtime.
Uses the Fn::Split intrinsic function.
Note that delimiter will not undergo token substitution, but values can.