# ArgumentType
<span class="source-link">[[Source]](src/options/options.md#L81)</span>
```pony
type ArgumentType is
  (None val | StringArgument val | I64Argument val | U64Argument val | F64Argument val)
```

#### Type Alias For

* ([None](builtin-None.md) val | [StringArgument](options-StringArgument.md) val | [I64Argument](options-I64Argument.md) val | [U64Argument](options-U64Argument.md) val | [F64Argument](options-F64Argument.md) val)

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