cash.flow: The cash.flow function
In ksyan/CreddaLeases:

This function calculates cash flow metrics over a period of time given growth projections, average lease data, and historical lease data.

cash.flow(hist.leases = test.collect.past,
  average.lease = test.average.lease,
  lease.growth = test.projections.by.day,
  assumptions = default.constants.list, emp.sheet = default.employees)

`hist.leases,`	data frame with information of historical leases
`average.lease,`	data on cash metrics of the average lease
`lease.growth,`	growth projections for future leases
`assumptions,`	a list of constant values
`emp.sheet,`	information about employees