A dictionary mapping currency codes to their exchange rates relative to a common base (typically USD). E.g. { USD: 1, EUR: 0.91, GBP: 0.79 }.
{ USD: 1, EUR: 0.91, GBP: 0.79 }
A dictionary mapping currency codes to their exchange rates relative to a common base (typically USD). E.g.
{ USD: 1, EUR: 0.91, GBP: 0.79 }.