Function loadMetadataBundle

loadMetadataBundle(bundleName: string): Promise<MetadataBundle | undefined>
Loads a metadata bundle (e.g., for a country group like DACH or EU). Bundles contain pre-compiled metadata for multiple regions in a single file.
Parameters
- bundleName: string
  Name of the bundle (e.g., "DACH", "EU", "G7")
Returns Promise<MetadataBundle | undefined>
The metadata bundle or undefined if not found
Example
```
// Load DACH bundle (DE, AT, CH)
await loadMetadataBundle("DACH")

// Now all DACH regions are available for sync operations
const parsed = parseSync("+49 170 1234567")
```
- Defined in metadata/loader.ts:98