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Class ChatSession (1.30.1)
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ChatSession (
model : vertexai . language_models . _language_models . ChatModel ,
context : typing . Optional [ str ] = None ,
examples : typing . Optional [
typing . List [ vertexai . language_models . _language_models . InputOutputTextPair ]
] = None ,
max_output_tokens : typing . Optional [ int ] = 128 ,
temperature : typing . Optional [ float ] = None ,
top_k : typing . Optional [ int ] = None ,
top_p : typing . Optional [ float ] = None ,
message_history : typing . Optional [
typing . List [ vertexai . language_models . _language_models . ChatMessage ]
] = None ,
stop_sequences : typing . Optional [ typing . List [ str ]] = None ,
)
ChatSession represents a chat session with a language model.
Within a chat session, the model keeps context and remembers the previous conversation.
Properties
message_history
List of previous messages.
Methods
send_message
send_message (
message : str ,
* ,
max_output_tokens : typing . Optional [ int ] = None ,
temperature : typing . Optional [ float ] = None ,
top_k : typing . Optional [ int ] = None ,
top_p : typing . Optional [ float ] = None ,
stop_sequences : typing . Optional [ typing . List [ str ]] = None
) - > vertexai . language_models . _language_models . TextGenerationResponse
Sends message to the language model and gets a response.
send_message_streaming
send_message_streaming (
message : str ,
* ,
max_output_tokens : typing . Optional [ int ] = None ,
temperature : typing . Optional [ float ] = None ,
top_k : typing . Optional [ int ] = None ,
top_p : typing . Optional [ float ] = None
) - > typing . Iterator [ vertexai . language_models . _language_models . TextGenerationResponse ]
Sends message to the language model and gets a streamed response.
The response is only added to the history once it's fully read.
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Last updated 2026-07-01 UTC.
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[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2026-07-01 UTC."],[],[]]