Type Alias propose_curator

Propose curator for funded child-bounty.

The dispatch origin for this call must be curator of parent bounty.

Parent bounty must be in active state, for this child-bounty call to work.

Child-bounty must be in "Added" state, for processing the call. And state of child-bounty is moved to "CuratorProposed" on successful call completion.

• parent_bounty_id: Index of parent bounty.
• child_bounty_id: Index of child bounty.
• curator: Address of child-bounty curator.
• fee: payment fee to child-bounty curator for execution.