Example
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[key: string]: string | number | boolean | undefined
ããããã£
string
string
string
string
ãŠãŒã¶ãŒã
phoneNumber çšã«éžæãã ISO 3166-1 alpha-2 ã®åœã³ãŒã (äŸ: 'US') ã§ãcountryCodes.available å
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string