When decrypting (via the stack master integration) on Ruby 2.7 I receive these deprecation warnings:
ejson_wrapper-0.4.0/lib/ejson_wrapper/decrypt_private_key_with_kms.rb:9: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
ejson_wrapper-0.4.0/lib/ejson_wrapper/decrypt_private_key_with_kms.rb:14: warning: The called method `call' is defined here