Metrics did not reflect successfully

[qiuqiu-007]

There is some problem about metric reflecting of keywords messages. It's really bothering me why the key word has already defined in the file of model.go, but did not reflected, such as fdb_client_messages and fdb_cluster_processes_messages. The following is key code:
#model.go row 21
Client struct { ... Messages []any json:"messages"}json:"client"
#model.go row 175
Cluster struct { ... Messages []struct { Description stringjson:"description"Name stringjson:"name"}json:"messages"
#model.go row 224
Cluster struct { ... Processes map[string]struct { Messages []anyjson:"messages"}json:"processes" fdbmeter:"key=process_id"