Bug fix

[lzxue]

Checklist

• npm test passes
• tests and/or benchmarks are included
• commit message follows commit guidelines

Description of change

[tests-checker]

Could you please add tests to make sure this change works as expected?

[lgtm-com]

This pull request introduces 1 alert and fixes 1 when merging f9324e9 into 6a8e10e - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

fixed alerts:

• 1 for Unused variable, import, function or class

[lgtm-com]

This pull request introduces 1 alert and fixes 1 when merging a993f0a into 6a8e10e - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

fixed alerts:

• 1 for Unused variable, import, function or class