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I am trying to transform a yaml document in order to make it easier to parse later in my project. I have output that looks like this: I want to use regex to find all occurrences of: Export: Name: xxxxx But only those occurrences which appear after "Output:" My document looks something like this: Resources: MyResource:Res1 Export: Name: SomeName Outputs: ExportOne: Export: Name: abc...

I want to call system environment in .yaml like below (error occur): system_env1: ${SYS_ENV_1} I have tried to use the code, but it doesn't work. I don't want to call the env in python code, and it should be called in .yaml file. I also tried (it doesn't work what I expect): system_env1: $SYS_ENV_1