Common plugin parameter

Common plugin parameter
These parameters are system reserved and it has @
prefix.
@type
: Specify plugin type
@id
: Specify plugin id. in_monitor_agent uses this value for plugin_id field
@label
: Specify label symbol. See label section
@log_level
: Specify per plugin log level. See Per Plugin Log section

type
, id
and log_level
are supported for backward compatibility.