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    fund_child_bounty: TxDescriptor<
        {
            curator?: MultiAddress;
            metadata: FixedSizeBinary<32>;
            parent_bounty_id: number;
            value: bigint;
        },
    >

    Fund a new child-bounty with a proposed curator, initiating the payment from the parent bounty to the child-bounty account/location.

    Must be signed by the parent curator.

    • If curator is not provided, the child-bounty will default to using the parent curator, allowing the parent curator to immediately call check_status and award_bounty to payout the child-bounty.
    • In case of a funding failure, the child-/bounty status must be updated with the check_status call before retrying with retry_payment call.
    • parent_bounty_id: Index of parent bounty for which child-bounty is being added.
    • value: The payment amount of this child-bounty.
    • metadata: The hash of an on-chain stored preimage with child-bounty metadata.
    • curator: Address of child-bounty curator.

    Emits [Event::ChildBountyCreated] and [Event::Paid] if successful.