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A predicted FunctionCall returned from the model that contains a string representing the FunctionDeclaration.name and a structured JSON object containing the parameters and their values.
The id of the function call. This must be sent back in the associated FunctionResponse.
This property is only supported in the Gemini Developer API (GoogleAIBackend). When using the Gemini Developer API (GoogleAIBackend), this property will be undefined.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["A predicted [FunctionCall](./ai.functioncall.md#functioncall_interface) returned from the model that contains a string representing the [FunctionDeclaration.name](./ai.functiondeclaration.md#functiondeclarationname) and a structured JSON object containing the parameters and their values.\n\n**Signature:** \n\n export interface FunctionCall \n\nProperties\n\n| Property | Type | Description |\n|-----------------------------------------------|--------|------------------------------------------------------------------------------------------------------------------------------------------------|\n| [args](./ai.functioncall.md#functioncallargs) | object | |\n| [id](./ai.functioncall.md#functioncallid) | string | The id of the function call. This must be sent back in the associated [FunctionResponse](./ai.functionresponse.md#functionresponse_interface). |\n| [name](./ai.functioncall.md#functioncallname) | string | |\n\nFunctionCall.args\n\n**Signature:** \n\n args: object;\n\nFunctionCall.id\n\nThe id of the function call. This must be sent back in the associated [FunctionResponse](./ai.functionresponse.md#functionresponse_interface).\n\nThis property is only supported in the Gemini Developer API ([GoogleAIBackend](./ai.googleaibackend.md#googleaibackend_class)). When using the Gemini Developer API ([GoogleAIBackend](./ai.googleaibackend.md#googleaibackend_class)), this property will be `undefined`.\n\n**Signature:** \n\n id?: string;\n\nFunctionCall.name\n\n**Signature:** \n\n name: string;"]]