enum_FilterName := [ "FEATURE", "SEVERITY", "TYPE" ]
enum_MatchOption := [ "EQUALS", "NOT_EQUALS" ]

valid {
    input.Body.filter.actions[_].key == enum_FilterName[_]
    input.Body.filter.actions[_].matchOption == enum_MatchOption[_]
    input.Body.filter.actions[_].values[_] == STRING
    input.Body.maxResults == INTEGER
    input.Body.nextToken == STRING
    input.ProviderMetadata.Account == STRING
    input.ProviderMetadata.AccessKeyId == STRING
    input.ProviderMetadata.Region == STRING
}