Satoru Yoshihara

## Bug Report Too many `phpmd` warnings. We need to check below. **Describe the bug** ``` examples/EchoBot/src/LINEBot/EchoBot/Dependency.php:32 Missing class import via use statement (line '32', column '27'). examples/EchoBot/src/LINEBot/EchoBot/Dependency.php:33 Missing class...

Calling `array_merge` is so slow, so we want to use `[]` operator instead. See: https://stackoverflow.com/questions/23348339/optimizing-array-merge-operation