Required. The language of this conversational query. See Language
Support
for a list of the currently supported language codes. Note that queries in
the same session do not necessarily need to specify the same language.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version available for the Google Cloud Dialogflow v2 API class TextInput is 4.26.0, with a range of versions from 4.26.0 down to 3.2.0 being accessible.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTextInput\u003c/code\u003e class represents natural language text intended for processing by the Dialogflow v2 API.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTextInput\u003c/code\u003e class is found within the \u003ccode\u003eGoogle.Cloud.Dialogflow.V2\u003c/code\u003e namespace, in the \u003ccode\u003eGoogle.Cloud.Dialogflow.V2.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"],["\u003cp\u003eThe class \u003ccode\u003eTextInput\u003c/code\u003e has two mandatory properties: \u003ccode\u003eLanguageCode\u003c/code\u003e, specifying the language of the query, and \u003ccode\u003eText\u003c/code\u003e, containing the UTF-8 encoded natural language text.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTextInput\u003c/code\u003e class implements several interfaces, such as \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable<TextInput>\u003c/code\u003e, \u003ccode\u003eIDeepCloneable<TextInput>\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, while also inheriting from the \u003ccode\u003eobject\u003c/code\u003e class.\u003c/p\u003e\n"]]],[],null,[]]