proposeRetrieval

$proposeRetrieval(amount): retrievaldId$

• Callable by $minter$ approved by TTG

• Allows $minter$ to retrieve t-bills from the SPV

  • Calculates current $activeOwedM$

  • Checks that the retrieval proposal does not put $minter$ into under collateralization $activeOwedM_{minter} <=( CV_{minter}- totalPendingRetrievals_{minter} - amount)* MR$

  • Checks that the retrieval proposal and current retrieval proposal will not exceed collateral $totalPendingRetrievals_{minter} + amount < CV$

  • Adds $amount$ to $totalPendingRetrievals_{minter}$ $totalPendingRetrievals_{minter}$$totalPendingRetrievals_{minter}+= amount$

  • Saves $pendingRetrievals_{minter}$ $pendingRetrievals_{minter, retrievalId}= amount$

  • Returns unique $retrievalId$ to be processed in $updateCollateral()$.