ReferenceError: cov_8345t82pr is not defined

```
(txs, networkId) => {
    /* istanbul ignore next */cov_8345t82pr.f[0]++;

    // tslint:disable:no-shadowed-variable
    const { recoverEcdsa, blake160 } = /* istanbul ignore next */(cov_8345t82pr.s[7]++, require("codechain-sdk/lib/utils"));
    const { PlatformAddress } = /* istanbul ignore next */(cov_8345t82pr.s[8]++, require("codechain-sdk/lib/core/classes"));
    /* istanbul ignore next */cov_8345t82pr.s[9]++;
    return txs.map(tx => {
        /* istanbul ignore next */cov_8345t82pr.f[1]++;

        const { message, signature } = /* istanbul ignore next */(cov_8345t82pr.s[10]++, tx);
        const accountId = /* istanbul ignore next */(cov_8345t82pr.s[11]++, blake160(recoverEcdsa(message, signature)));
        /* istanbul ignore next */cov_8345t82pr.s[12]++;
        return PlatformAddress.fromAccountId(accountId, {
            networkId
        }).toString();
```