ManifestBuilder from string

ManifestBuilder.ts

    public static async fromString(manifestText: string): Promise<ManifestBuilder> {
        const instructions = await RadixEngineToolkit.Instructions.convert(
            {
                "kind": "String",
                "value": manifestText
            },
            NetworkId.Mainnet,
            "Parsed"
        );

        let manifestBuilder = new ManifestBuilder();
        let anyBuilder = <any>manifestBuilder;
        anyBuilder.instructions = instructions.value;
        // need to set the below numbers to make the builder work properly (i.e. manually count the buckets, proofs, etc)
        anyBuilder.idAllocator.nextBucketId = 0;
        anyBuilder.idAllocator.nextProofId = 0;
        anyBuilder.idAllocator.nextAddressReservation = 0;
        anyBuilder.idAllocator.nextNamedAddress = 0;
        return manifestBuilder;
    }