Class CodeChatModel (1.119.0)

CodeChatModel(model_id: str, endpoint_name: typing.Optional[str] = None)

CodeChatModel represents a model that is capable of completing code.

.. rubric:: Examples

code_chat_model = CodeChatModel.from_pretrained("codechat-bison@001")

code_chat = code_chat_model.start_chat( context="I'm writing a large-scale enterprise application.", max_output_tokens=128, temperature=0.2, )

code_chat.send_message("Please help write a function to calculate the min of two numbers")

Methods

CodeChatModel

CodeChatModel(model_id: str, endpoint_name: typing.Optional[str] = None)

Creates a LanguageModel.

This constructor should not be called directly. Use LanguageModel.from_pretrained(model_name=...) instead.

from_pretrained

from_pretrained(model_name: str) -> vertexai._model_garden._model_garden_models.T

Loads a _ModelGardenModel.

Exceptions
Type Description
ValueError If model_name is unknown.
ValueError If model does not support this class.

get_tuned_model

get_tuned_model(
 tuned_model_name: str,
) -> vertexai.language_models._language_models._LanguageModel

Loads the specified tuned language model.

list_tuned_model_names

list_tuned_model_names() -> typing.Sequence[str]

Lists the names of tuned models.

start_chat

start_chat(
 *,
 context: typing.Optional[str] = None,
 max_output_tokens: typing.Optional[int] = None,
 temperature: typing.Optional[float] = None,
 message_history: typing.Optional[
 typing.List[vertexai.language_models.ChatMessage]
 ] = None,
 stop_sequences: typing.Optional[typing.List[str]] = None
) -> vertexai.language_models.CodeChatSession

Starts a chat session with the code chat model.

tune_model

tune_model(
 training_data: typing.Union[str, pandas.core.frame.DataFrame],
 *,
 train_steps: typing.Optional[int] = None,
 learning_rate_multiplier: typing.Optional[float] = None,
 tuning_job_location: typing.Optional[str] = None,
 tuned_model_location: typing.Optional[str] = None,
 model_display_name: typing.Optional[str] = None,
 default_context: typing.Optional[str] = None,
 accelerator_type: typing.Optional[typing.Literal["TPU", "GPU"]] = None,
 tuning_evaluation_spec: typing.Optional[
 vertexai.language_models.TuningEvaluationSpec
 ] = None
) -> vertexai.language_models._language_models._LanguageModelTuningJob

Tunes a model based on training data.

This method launches and returns an asynchronous model tuning job. Usage:

tuning_job = model.tune_model(...)
... do some other work
tuned_model = tuning_job.get_tuned_model() # Blocks until tuning is complete
Exceptions
Type Description
ValueError If the "tuning_job_location" value is not supported
ValueError If the "tuned_model_location" value is not supported
RuntimeError If the model does not support tuning
AttributeError If any attribute in the "tuning_evaluation_spec" is not supported

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Last updated 2025年10月30日 UTC.