WithInterceptors panics without any interceptors

[bgpat]

Why

I ran example code, so below error occurs:

panic: runtime error: index out of range

goroutine 1 [running]:
github.com/izumin5210/pubee.WithInterceptors.func1.1(0x1647380, 0xc0002fe930, 0xc0002fe960, 0xc0000d8ea0)
	/Users/bgpat/src/github.com/izumin5210/pubee/option.go:93 +0x175
github.com/izumin5210/pubee.(*engineImpl).Publish(0xc0002fe8d0, 0x1647380, 0xc0002fe930, 0x14a0f00, 0xc0001ca4b0, 0x0, 0x0, 0x0)
	/Users/bgpat/src/github.com/izumin5210/pubee/engine.go:68 +0x342
main.main()
	/Users/bgpat/wantedly/pubsub-test/main.go:48 +0x560
exit status 2

What

It seems WithInterceptors needs one or more interceptors.