createPlatformAddress parameter should have default parameter {}

[foriequal0]

createAssetTransferAddress has default parameter {} for params

codechain-sdk-js/src/key/index.ts

Lines 89 to 95 in df627a6

	public async createAssetTransferAddress(
	params: {
	type?: "P2PKH" | "P2PKHBurn";
	keyStore?: KeyStore;
	passphrase?: string;
	} = {}
	): Promise<AssetTransferAddress> {

but not for createPlatformAddress.

codechain-sdk-js/src/key/index.ts

Lines 68 to 71 in df627a6

	public async createPlatformAddress(params: {
	keyStore?: KeyStore;
	passphrase?: string;
	}): Promise<PlatformAddress> {

Symmetry is broken.