createRemoteConfigNumberStore()
createRemoteConfigNumberStore(remoteConfig, key, options) creates a store that will
			activate the current remoteconfig instance. The store contains a number value retrieved from the
			remote config.
Parameters
- remoteConfig: RemoteConfig- The remote config instance. If you put the component at the root of your app, or higher than where you're using this store, you can use- nullor- undefinedas the parameter and the store will retrieve the database instance from the context.
- key: string- The remote config key.
- options?: RemoteConfigStoreOptions<number>
Properties
- subscribe: ((val: number) => void)) => void- Subscribe method for the Svelte store. Allows for the `$store` syntax.
- loading: boolean- When the remote config key is loading.
- error: unknown- Error if any.
Types
interface RemoteConfigStoreOptions<T> {
  subscribe: (val: number) => void;
  loading: boolean;
  error: unknown;
}