How to use the fabric-common.BaseClient.newCryptoSuite function in fabric-common

async initCredentialStores() {
		if (!this._network_config) {
			throw new Error('No common connection profile settings found');
		}
		const client_config = this._network_config.getClientConfig();
		if (client_config && client_config.credentialStore) {
			const key_value_store = await BaseClient.newDefaultKeyValueStore(client_config.credentialStore);
			this.setStateStore(key_value_store);
			const crypto_suite = BaseClient.newCryptoSuite();
			// all crypto suites should extends api.CryptoSuite
			const cryptoStore = BaseClient.newCryptoKeyStore(client_config.credentialStore.cryptoStore);
			crypto_suite.setCryptoKeyStore(cryptoStore);
			this.setCryptoSuite(crypto_suite);
		} else {
			throw new Error('No credentialStore settings found');
		}
	}

async setAdminSigningIdentity(private_key, certificate, mspid) {
		logger.debug('setAdminSigningIdentity - start mspid:%s', mspid);
		if (typeof private_key === 'undefined' || private_key === null || private_key === '') {
			throw new Error('Invalid parameter. Must have a valid private key.');
		}
		if (typeof certificate === 'undefined' || certificate === null || certificate === '') {
			throw new Error('Invalid parameter. Must have a valid certificate.');
		}
		if (typeof mspid === 'undefined' || mspid === null || mspid === '') {
			throw new Error('Invalid parameter. Must have a valid mspid.');
		}
		let crypto_suite = this.getCryptoSuite();
		if (!crypto_suite) {
			crypto_suite = BaseClient.newCryptoSuite();
		}
		const key = await crypto_suite.createKeyFromRaw(private_key);
		const public_key = await crypto_suite.createKeyFromRaw(certificate);

		this._adminSigningIdentity = new SigningIdentity(certificate, public_key, mspid, crypto_suite, new Signer(crypto_suite, key));
	}