Resolves a parameter by checking if it's a key in a fixture file.
If the fixture doesn't exist or the key isn't found, it returns the raw string.
Also resolves environment variable placeholders {{VARIABLE_NAME}}.
For
Parameters
key: string
The key to resolve (can be a fixture key or {{ENV_VAR}})
Resolves a parameter by checking if it's a key in a fixture file. If the fixture doesn't exist or the key isn't found, it returns the raw string. Also resolves environment variable placeholders {{VARIABLE_NAME}}. For