o _j@sNdZddlmZddlmZmZmZddlmZeGdddeZ dgZ dS)uExchange client protocol and base class. All exchange-specific clients implement the :class:`ExchangeClient` Protocol. This enables structural subtyping — any class with the right methods works, without needing to explicitly inherit from a base class. ) annotations)Protocolruntime_checkableAny)OptionChainResultc@sPeZdZdZdddd d Zdd d dddZdddZd ddZd!ddZd S)"ExchangeClientzProtocol defining the minimal interface for an exchange client. Any class implementing these methods is a valid exchange client, whether or not it subclasses :class:`BaseExchangeClient`. T)is_indexsymbolstrrboolreturnrcdS)aFetch the full option chain for *symbol*. Args: symbol: Trading symbol (e.g. ``"NIFTY"``). is_index: ``True`` for index instruments, ``False`` for equities. Returns: :class:`~indiaopt.models.option_chain.OptionChainResult` N)selfr rrrR/home/dinkstrade/pdmp/venv/lib/python3.10/site-packages/indiaopt/exchanges/base.pyfetch_option_chainsz!ExchangeClient.fetch_option_chainN)rexpiryr str | Nonedict[str, Any]cr )z9Fetch the unparsed raw JSON dictionary from the exchange.Nr)rr rrrrrfetch_raw_option_chain(sz%ExchangeClient.fetch_raw_option_chain list[str]cr )zReturn available expiry date strings for *symbol*. Returns: List of expiry date strings in exchange-specific format. Nr)rr rrrget_expiry_dates2szExchangeClient.get_expiry_datescdSNr)rrrr __aenter__:zExchangeClient.__aenter__argsobjectNonecrrr)rrrrr __aexit__=rzExchangeClient.__aexit__)r r rr r r)r r rr rrr r)r r r r)r r)rrr r) __name__ __module__ __qualname____doc__rrrrrrrrrrs  rN) r# __future__rtypingrrrindiaopt.models.option_chainrr__all__rrrrs   1