func (this *Collect) processItem(item value.AnnotatedValue, context *Context) bool {
if len(this.values) == cap(this.values) {
values := make([]interface{}, len(this.values), len(this.values)<<1)
copy(values, this.values)
this.values = values
}
this.values = append(this.values, item.Actual())
return true
}