[[["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 2025-09-04 UTC."],[],[],null,["# Google Cloud Discovery Engine V1 Client - Class GenerationSpec (1.7.0)\n\nVersion latestkeyboard_arrow_down\n\n- [1.7.0 (latest)](/php/docs/reference/cloud-discoveryengine/latest/V1.StreamAssistRequest.GenerationSpec)\n- [1.6.1](/php/docs/reference/cloud-discoveryengine/1.6.1/V1.StreamAssistRequest.GenerationSpec)\n- [1.5.1](/php/docs/reference/cloud-discoveryengine/1.5.1/V1.StreamAssistRequest.GenerationSpec)\n- [1.4.0](/php/docs/reference/cloud-discoveryengine/1.4.0/V1.StreamAssistRequest.GenerationSpec)\n- [1.3.3](/php/docs/reference/cloud-discoveryengine/1.3.3/V1.StreamAssistRequest.GenerationSpec)\n- [1.2.0](/php/docs/reference/cloud-discoveryengine/1.2.0/V1.StreamAssistRequest.GenerationSpec)\n- [1.1.0](/php/docs/reference/cloud-discoveryengine/1.1.0/V1.StreamAssistRequest.GenerationSpec)\n- [1.0.0](/php/docs/reference/cloud-discoveryengine/1.0.0/V1.StreamAssistRequest.GenerationSpec)\n- [0.11.3](/php/docs/reference/cloud-discoveryengine/0.11.3/V1.StreamAssistRequest.GenerationSpec)\n- [0.8.0](/php/docs/reference/cloud-discoveryengine/0.8.0/V1.StreamAssistRequest.GenerationSpec)\n- [0.7.1](/php/docs/reference/cloud-discoveryengine/0.7.1/V1.StreamAssistRequest.GenerationSpec)\n- [0.6.0](/php/docs/reference/cloud-discoveryengine/0.6.0/V1.StreamAssistRequest.GenerationSpec)\n- [0.5.0](/php/docs/reference/cloud-discoveryengine/0.5.0/V1.StreamAssistRequest.GenerationSpec)\n- [0.4.0](/php/docs/reference/cloud-discoveryengine/0.4.0/V1.StreamAssistRequest.GenerationSpec)\n- [0.3.0](/php/docs/reference/cloud-discoveryengine/0.3.0/V1.StreamAssistRequest.GenerationSpec)\n- [0.2.0](/php/docs/reference/cloud-discoveryengine/0.2.0/V1.StreamAssistRequest.GenerationSpec)\n- [0.1.1](/php/docs/reference/cloud-discoveryengine/0.1.1/V1.StreamAssistRequest.GenerationSpec) \nReference documentation and code samples for the Google Cloud Discovery Engine V1 Client class GenerationSpec.\n\nAssistant generation specification for the request.\n\nThis allows to override the default generation configuration at the engine\nlevel.\n\nGenerated from protobuf message `google.cloud.discoveryengine.v1.StreamAssistRequest.GenerationSpec`\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ DiscoveryEngine \\\\ V1 \\\\ StreamAssistRequest\n\nMethods\n-------\n\n### __construct\n\nConstructor.\n\n### getModelId\n\nOptional. The Vertex AI model_id used for the generative model. If not\nset, the default Assistant model will be used.\n\n### setModelId\n\nOptional. The Vertex AI model_id used for the generative model. If not\nset, the default Assistant model will be used."]]