Error: the value `arg` is defined multiple times
   ╭─[0049_duplicate_directive_argument_definition_names.graphql:1:20]
   │
 1 │ directive @example(arg: Boolean, arg: Boolean) on FIELD
   │                    ──────┬─────  ──────┬─────  
   │                          ╰───────────────────── previous definition of `arg` here
   │                                        │       
   │                                        ╰─────── `arg` defined again here
   │ 
   │ Help: `arg` must only be defined once in this argument list or input object definition.
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