func WithIDFunc(f IDFunc) Option {
	return func(c *Config) {
		c.idFunc = f
	}
}
// WithIDFunc sets worker id generator function.
WithIDFunc sets worker id generator function.
// WithIDFunc sets worker id generator function .
func WithIDFunc(f IDFunc) Option {
	return func(c *Config) {
		c.idFunc = f
	}
}
func WithIDFunc ( f IDFunc ) Option { return func ( c * Config ) { c . idFunc = f } }
WithIDFunc sets worker id generator function.
WithIDFunc sets worker id generator function .