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type asynchronizer struct {
payload interface{}
}
func (as *asynchronizer) MarshalJSON() ([]byte, error) {
insert := []byte("\"async\":true,")
if as.payload == nil {
as.payload = struct{}{}
}
raw, err := json.Marshal(as.payload)
if err != nil {
return raw, err
}
if raw[1] == '}' {
insert = insert[:len(insert)-2]
}
return append(append(raw[0:1], insert...), raw[1:]...), nil
}
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