Function isBuiltinFormatter

packages/cli-lib/extract.ts:132–138

(
  format: ExtractOpts['format']
)

}

function isBuiltinFormatter(
  format: ExtractOpts['format']
): format is string | undefined {
  return (
    !format || (typeof format === 'string' && BUILTIN_FORMATTERS.has(format))
  )
}

function canExtractWithNative(
  files: readonly string[],