as_derivative: TxDescriptor<{
    call: TxCallData;
    index: number;
}>

Send a call through an indexed pseudonym of the sender.

Filter from origin are passed along. The call will be dispatched with an origin which use the same filter as the origin of this call.

NOTE: If you need to ensure that any account-based filtering is not honored (i.e. because you expect proxy to have been used prior in the call stack and you do not want the call restrictions to apply to any sub-accounts), then use as_multi_threshold_1 in the Multisig pallet instead.

NOTE: Prior to version *12, this was called as_limited_sub.

The dispatch origin for this call must be Signed.