Set config module logging level to error
logging set config error
OK logging set config error

Get config module logging level
logging show config
DATA config error

Get configuration for invalid module
logging show foo
ERR "Invalid module 'foo'"

Set module logging level for invalid module
logging set foo error
ERR "Invalid module 'foo'"

Set invalid logging level for module
logging set config foo
ERR "Unknown level 'foo' for 'logging set' command"

Set module logging level to default
logging set config default
OK logging set config default

Get module logging level (should be error - same as global)
logging show config
DATA config error