[[["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 2025-08-28 UTC."],[],[],null,["# Interface FunctionDeclarationSchema (1.10.0)\n\nVersion latestkeyboard_arrow_down\n\n- [1.10.0 (latest)](/nodejs/docs/reference/vertexai/latest/vertexai/functiondeclarationschema)\n- [1.9.0](/nodejs/docs/reference/vertexai/1.9.0/vertexai/functiondeclarationschema)\n- [1.8.1](/nodejs/docs/reference/vertexai/1.8.1/vertexai/functiondeclarationschema)\n- [1.7.0](/nodejs/docs/reference/vertexai/1.7.0/vertexai/functiondeclarationschema)\n- [1.6.0](/nodejs/docs/reference/vertexai/1.6.0/vertexai/functiondeclarationschema)\n- [1.5.0](/nodejs/docs/reference/vertexai/1.5.0/vertexai/functiondeclarationschema)\n- [1.4.1](/nodejs/docs/reference/vertexai/1.4.1/vertexai/functiondeclarationschema)\n- [1.3.1](/nodejs/docs/reference/vertexai/1.3.1/vertexai/functiondeclarationschema)\n- [1.2.0](/nodejs/docs/reference/vertexai/1.2.0/vertexai/functiondeclarationschema)\n- [1.1.0](/nodejs/docs/reference/vertexai/1.1.0/vertexai/functiondeclarationschema)\n- [1.0.0](/nodejs/docs/reference/vertexai/1.0.0/vertexai/functiondeclarationschema)\n- [0.5.0](/nodejs/docs/reference/vertexai/0.5.0/vertexai/functiondeclarationschema)\n- [0.4.0](/nodejs/docs/reference/vertexai/0.4.0/vertexai/functiondeclarationschema)\n- [0.3.1](/nodejs/docs/reference/vertexai/0.3.1/vertexai/functiondeclarationschema)\n- [0.2.1](/nodejs/docs/reference/vertexai/0.2.1/vertexai/functiondeclarationschema) \nSchema for parameters passed to [FunctionDeclaration.parameters](/nodejs/docs/reference/vertexai/latest/vertexai/functiondeclaration).\n\nPackage\n-------\n\n[@google-cloud/vertexai](../overview.html)\n\nProperties\n----------\n\n### description\n\n description?: string;\n\nOptional. Description of the parameter.\n\n### properties\n\n properties: {\n [k: string]: FunctionDeclarationSchemaProperty;\n };\n\nThe format of the parameter.\n\n### required\n\n required?: string[];\n\nOptional. Array of required parameters.\n\n### type\n\n type: SchemaType;\n\nThe type of the parameter."]]