TradeFeedStore# tradingstrategy.direct_feed.trade_store.TradeFeedStore Python class in Trading Strategy framework. class TradeFeedStore[source]# Bases: ABC Describe trade feed storage backend. __init__()# Methods __init__() create() Create a new state storage. is_pristine() State has not been written yet. load() Load the state from the storage. save(df) Save the state to the storage. abstract is_pristine()[source]# State has not been written yet. Return type: bool abstract load()[source]# Load the state from the storage. Return type: DataFrame abstract save(df)[source]# Save the state to the storage. Parameters: df (DataFrame) – create()[source]# Create a new state storage. Parameters: name – Name of the strategy this State belongs to Return type: DataFrame