Provides metadata information about a command.
| name | data type | description | 
|---|---|---|
| name | string | The name of of the command. | 
| argSchema | string | The command arguments schema. This is in the form of json schema and describes the structure of the command arguments. If null, the command does not take arguments. | 
Example
{
  "name" : "...",
  "argSchema" : "..."
}