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To use, you should have the ``openai`` python package installed, and the environment variable ``OPENAI_API_KEY`` set with your API key. Any parameters that are valid to be passed to the openai.create call can be passed in, even if not explicitly saved on this class. Example: .. code-block:: python from langchain_community.llms import OpenAIChat openaichat = OpenAIChat(model_name="gpt-3.5-turbo") NTrrr^rjrrrrr'rrrrrprrrrrNr prefix_messagesFrrrrrrrrrrr)cdt|D}|di}t|D]5}||vr/||vrt d|d||||<6||d<|S)rch|] }|j SrE)r)rfields r0 z)OpenAIChat.build_extra.. s#V#V#VEEK#V#V#Vr2rzFound z supplied twice.)rrr?listrpop)r{rrextra field_names r0rzOpenAIChat.build_extras$W#VZ__=S=S=U=U#V#V#V  >2..v,, ; ;J!999&&$%Jj%J%J%JKKK$*JJz$:$:j!!&~ r2r ct|dd}t|ddd}t|ddd}t|d d d} d d l}||_|r||_|r||_|r ||d |_n#t $rt dwxYw |j|d<n#t$rtdwxYwtj d|S)rrprqrrr6rrrrrrNr"rr^z`openai` has no `ChatCompletion` attribute, this is likely due to an old version of the openai package. Try upgrading it with `pip install --upgrade openai`.r) rrOrr!rr&rChatCompletionAttributeErrorrrr)r{rrprrrrOs r0rzOpenAIChat.validate_environmentsk. $&6  /        ,       3 )+@"     MMM+FN 2"1" :&9# M(4|LL    ?    %4F8     7     G    s )A66B BB9c|jS)r)rrrs r0rzOpenAIChat._default_paramsHs   r2rrurrrc t|dkrtd||jd|ddgz}id|ji|j}|d|vrtd||d<|d d kr|d =||fS) Nrz6OpenAIChat currently only supports single prompt, got userr)rolecontentrrr rr)rrrrrr?)rsrrmessagesrs r0_get_chat_paramszOpenAIChat._get_chat_paramsMs w<!W$BV!W   !UVVV!F6N ::l # #r ) )|$r2rrIrXrYrc+tK||g|\}}i||ddi}t|f||d|D]}t|ts|}|ddddd}t | } |r||| | VdS NrTrrIr5rdeltarr6r7)r)rrerr>r?rr rsrrrIrYrrrtokenrs r0rzOpenAIChat._stream_s 00&4@@&5F5f5h550  #  @F   Kk400 1)..00  *1-g6::9bIIE#///E A,,U%,@@@KKKK  r2rfrc K||g|\}}i||ddi}t|f||d|d{V23d{V}t|ts|}|ddddd}t | } |r||| d{V| WV6dSr)rrkrr>r?rrrs r0rzOpenAIChat._astreamssP 00&4@@&5F5f5h55'= ( #( ( @F( ( " " " " " "       +k400 1)..00  *1-g6::9bIIE#///E G!2252FFFFFFFFFKKKKK" " " sC rc |jr;d}|j|d||fi|D] }||}||z } |Jt|ggS|||\}}i||}t |f||d|} t | t s| } | d|jd} tt| dddd gg| S Nr)rrr,rr5messagerr7r) rrrrrerr>rr rsrrrIrYrrrr full_responsers r0rzOpenAIChat._generatesP > 948J%gaj$ NNvNN ( (%!&JJ%'JJ))):,888 800$??&%F%f%-  #  @F  -.. 1)..00M(1/  y!9!!rrrs r0r zOpenAIChat._agenerates > 948J,t}WQZ{UUfUU ( ( ( ( ( ( (e%!&JJ%'JJ V ))):,888 800$??&%F%f%4  #  @F        -.. 1)..00M(1/  y!9!!rrprrrNrrrrhrrr"rfrrrrerrrrrr r,r0rCrkrls@r0rrs  %d333F3333dD999L9999%J%%%%#(5#>#>#>L>>>>V%*E$i$H$H$HNHHHHO%*U4z%J%J%JOJJJJ#'L&&&&K<!E$777O7777,I/?BsuuODDDD3AFFFFF7_(###   [$# 000X0d!!!X! ?C     *%):> .%)?C .%):> ! ! ! ! ! L%)?C ! ! ! ! ! FKKKXKX          r2r)r$r%r&r'r(r'r)r*)r3r'r)r)r&r'r3r'r)r*rUr])rGrHrIrJr)rK)rGrHrIrXrYrr)r)rGrHrIrfrYrr)r)> __future__rloggingrr8rtypingrrrrrr r r r r rrrrrlangchain_core._api.deprecationrlangchain_core.callbacksrr#langchain_core.language_models.llmsrrlangchain_core.outputsrrrlangchain_core.utilsrrrlangchain_core.utils.pydanticrlangchain_core.utils.utilsrpydanticr r!r" langchain_community.utils.openair# getLoggerrar>r1r@rBrFrWrerkrmrrurrEr2r0rs"""""" $766666UTTTTTTTIIIIIIIIII 544444::::::7777777777999999  8 $ $ 9 9 9 9    SSSS     ,7;,,,,,(<@22222&C 2C 2C 2C 2C 2C 2C 2C 2L (E>WXXXLLLLLZLLYXL4  E6TX X X X X *X X X v   4 O O O O O O O  O O O r2