[aws: <map of string to aws_storage_config>]
[azure: <map of string to azure_storage_config>]
[bos: <map of string to bos_storage_config>]
[filesystem: <map of string to local_storage_config>]
[gcs: <map of string to gcs_storage_config>]
[alibabacloud: <map of string to alibabacloud_storage_config>]
[swift: <map of string to swift_storage_config>]
[cos: <map of string to cos_storage_config>]