GeminiPart
text、inlineData 或 fileData；函数调用续写使用
functionCall、functionResponse 和 thoughtSignature。{
"text": "string",
"thought": true,
"thoughtSignature": "string",
"inlineData": {
"mimeType": "image/png",
"data": "string"
},
"fileData": {
"mimeType": "image/png",
"fileUri": "http://example.com"
},
"functionCall": {
"name": "string",
"args": {
"property1": "string",
"property2": "string"
}
},
"functionResponse": {
"name": "string",
"response": {
"property1": "string",
"property2": "string"
},
"property1": "string",
"property2": "string"
},
"property1": "string",
"property2": "string"
}