Type Alias RcCrowdloanContribution

Amount of balance that a contributor made towards a crowdloan.

withdraw_crowdloan_contribution can be permissionlessly called once the block number passed to unlock the balance for a specific account.

The keys are as follows:

• Block number after which the balance can be unlocked.
• The para_id of the crowdloan.
• The account that made the contribution.

The value is (fund_pot, balance). The contribution pot is the second key in the RcCrowdloanContribution storage.