Read IMF Azure-APIM subscription keys from the environment, in priority order (primary, then secondary). Empty / unset / duplicate keys are filtered out so the returned array is [] only when no key is set at all.
[]
Ordered list of candidate API keys (length 0–2).
Read IMF Azure-APIM subscription keys from the environment, in priority order (primary, then secondary). Empty / unset / duplicate keys are filtered out so the returned array is
[]only when no key is set at all.