Enables to observe and modify the properties map. The following subcommands are available.

Removes all entries from the properties.

Use: properties clear

Returns true if the properties map contains a mapping for the specified key.

Use: properties contains key

Lists all entries in the properties map.

Use: properties list

Adds a new entry to the properties map. If the key specified already exists in the map, it modifies the corresponding entry.

Use: properties put key value

Removes a specific entry from the properties map.

Use: properties remove key