DepositAll executes all requests with the given depositors in parallel.

FundAll executes all requests with the given funders in parallel.

MixBals randomly modifies the values of bals while the sum stays the same.

Multiply multiplies the passed `bals` with `f` and returns them.

NewSetup returns a new Setup.

DefaultExtFee is a rough cost estimation for one extrinsic.

PastBlocks defines how many past blocks should be queried.

Setup is the test setup.