Gets the file system association information. This operation is only supported for FSx File Gateways.
See https://www.paws-r-sdk.com/docs/storagegateway_describe_file_system_associations/ for full documentation.
storagegateway_describe_file_system_associations(FileSystemAssociationARNList)
[required] An array containing the Amazon Resource Name (ARN) of each file system association to be described.