Retrieve a username and password
op_get_item(ops, name, fields = "username,password")
| ops | 1Password Session object, created from setup_op() or unlock_op()  | 
    
|---|---|
| name | Specify an item by name or uuid. UUID is preferred for consistency.  | 
    
| fields | Optional. List of fields desired. NULLable to get all contents.  | 
    
A character vector