processor_alpaca.py: function: def fetch_latest_data() can be limited to downloading 1 data point?

Currently extending the paper trading with a new data processor so as to integrate with my broker ig.com

They only support downloading a maximum of 10K data points per week (across all stocks), so extremely limited.

I am experimenting downloading data from Yahoo Finance, for training, testing and also fetching the latest data for the state as part of trading ops.

In processor_alpaca.py there's a function:

def fetch_latest_data(
self, ticker_list, time_interval, tech_indicator_list, limit=100
) -> pd.DataFrame:

I notice it only uses the latest price even though it downloads 100.

latest_price = price_array[-1]
latest_tech = tech_array[-1]

It looks like this function will still work properly if I set the limit to 1 - please would you confirm?

If this is the case why download 100 anyway?

Many thanks