trade

This is a very simple enchantment, but I think it is so helpful for intuitively comparing strat's performances.

It is unclear how to use something like get_token_balance() with respect to the Uniswap v2 factory contract. I am trying to view the amount of a token in the Uniswap v2 liquidity pool, and it seems all I can check is the ERC20 token balance globally.

Edit: I see now I can use get_ex_token_balance(), but I am receiving the Uniswap v1 pool amounts. When I switch to version 2 the Factory methods

in data_loader.py: a merge between _fetch_data_range() and fetch_data_range() would improve code quality (need to make sure all flows are covered by unit tests)