Function createLocalInstanceIfNoneExists

createLocalInstanceIfNoneExists(
    owner: SHA256IdHash<Person>,
    instanceName?: string,
): Promise<
    {
        exists: boolean;
        instanceId: SHA256IdHash<Instance>;
        instanceKeys: SHA256Hash<Keys>;
    },
>
Creates a local instance if none already exists.

This means that the instance will also have a complete set of keys associated with it. This function will assert that only one local instance for this owner exists.
Parameters
- owner: SHA256IdHash<Person>
- OptionalinstanceName: string
Returns Promise<
    {
        exists: boolean;
        instanceId: SHA256IdHash<Instance>;
        instanceKeys: SHA256Hash<Keys>;
    },
>
- Defined in misc/instance.ts:93