Defines interfaces used by Agents to act upon a market.

An Agent can be either a Producer that stores goods into the market or a Consumer that retrieves goods from the market. While an Agent is acting upon a market, it is immutable.

market

Infrastructure for producers and consumers.

The core purpose of this library is to define the traits of items that interact with markets. A market holds goods in a stock. Producers store goods in the stock while consumers retrieve goods from the stock.