Module Expr Str ImportFrom alias alias ImportFrom alias ImportFrom alias alias alias ImportFrom alias ClassDef bases NameLoad body Expr Str Assign NameStore Call NameLoad ListLoad NameLoad NameLoad Assign NameStore NameLoad FunctionDef arguments args NameParam NameParam NameParam NameParam NameParam defaults NameLoad NameLoad body Expr Call AttributeLoad Call NameLoad NameLoad NameLoad attr NameLoad NameLoad keyword NameLoad keyword NameLoad decorator_list FunctionDef arguments args NameParam defaults body Return Call AttributeLoad NameLoad attr AttributeLoad AttributeLoad NameLoad attr attr NameLoad decorator_list NameLoad FunctionDef arguments args NameParam defaults body Return Call AttributeLoad NameLoad attr AttributeLoad AttributeLoad NameLoad attr attr decorator_list NameLoad decorator_list ClassDef bases NameLoad body Expr Str Assign NameStore Call NameLoad ListLoad NameLoad NameLoad Assign NameStore NameLoad FunctionDef arguments args NameParam NameParam NameParam NameParam NameParam defaults NameLoad NameLoad body Expr Call AttributeLoad Call NameLoad NameLoad NameLoad attr NameLoad NameLoad keyword NameLoad keyword NameLoad decorator_list FunctionDef arguments args NameParam defaults body Return Call AttributeLoad NameLoad attr AttributeLoad AttributeLoad NameLoad attr attr NameLoad decorator_list NameLoad FunctionDef arguments args NameParam defaults body Return Call AttributeLoad NameLoad attr AttributeLoad AttributeLoad NameLoad attr attr decorator_list NameLoad decorator_list
N/A N/A 
Reference implementation for buyback auth loaders.
 data CashBuybackAuthorizations ShareBuybackAuthorizations events EventsLoader zipline.pipeline.common BUYBACK_ANNOUNCEMENT_FIELD_NAME CASH_FIELD_NAME SHARE_COUNT_FIELD_NAME zipline.utils.memoize lazyval CashBuybackAuthorizationsLoader N/A EventsLoader N/A N/A 
    Reference loader for
    :class:`zipline.pipeline.data.CashBuybackAuthorizations`.

    events_by_sid: dict[sid -> pd.DataFrame(knowledge date,
    event date, cash value)]

     N/A expected_cols N/A frozenset N/A BUYBACK_ANNOUNCEMENT_FIELD_NAME CASH_FIELD_NAME N/A event_date_col BUYBACK_ANNOUNCEMENT_FIELD_NAME __init__ N/A N/A self all_dates events_by_sid infer_timestamps dataset N/A False CashBuybackAuthorizations N/A N/A N/A N/A N/A super CashBuybackAuthorizationsLoader self __init__ all_dates events_by_sid infer_timestamps infer_timestamps dataset dataset N/A cash_amount_loader N/A N/A self N/A N/A N/A N/A N/A self _previous_event_value_loader N/A N/A self dataset cash_amount CASH_FIELD_NAME N/A lazyval announcement_date_loader N/A N/A self N/A N/A N/A N/A N/A self _previous_event_date_loader N/A N/A self dataset announcement_date N/A lazyval N/A ShareBuybackAuthorizationsLoader N/A EventsLoader N/A N/A 
    Reference loader for
    :class:`zipline.pipeline.data.ShareBuybackAuthorizations`.

    Does not currently support adjustments to the dates of known buyback
    authorizations.

    events_by_sid: dict[sid -> pd.DataFrame(knowledge date,
     event date, share value)]

     N/A expected_cols N/A frozenset N/A BUYBACK_ANNOUNCEMENT_FIELD_NAME SHARE_COUNT_FIELD_NAME N/A event_date_col BUYBACK_ANNOUNCEMENT_FIELD_NAME __init__ N/A N/A self all_dates events_by_sid infer_timestamps dataset N/A False ShareBuybackAuthorizations N/A N/A N/A N/A N/A super ShareBuybackAuthorizationsLoader self __init__ all_dates events_by_sid infer_timestamps infer_timestamps dataset dataset N/A share_count_loader N/A N/A self N/A N/A N/A N/A N/A self _previous_event_value_loader N/A N/A self dataset share_count SHARE_COUNT_FIELD_NAME N/A lazyval announcement_date_loader N/A N/A self N/A N/A N/A N/A N/A self _previous_event_date_loader N/A N/A self dataset announcement_date N/A lazyval N/A