Indicates that the parameter does not have a value.
Filled
Indicates that the parameter has a value.
Invalid
Indicates that the parameter value is invalid. This field can be used
by the webhook to invalidate the parameter and ask the server to
collect it from the user again.
[[["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 2025-03-21 UTC."],[[["This webpage provides reference documentation for the `PageInfo.Types.FormInfo.Types.ParameterInfo.Types.ParameterState` enum in the Dialogflow v3 API."],["The latest version documented is 2.23.0, with a range of previous versions from 1.0.0 up to that version available for reference."],["The `ParameterState` enum defines four possible states for a parameter: `Empty`, `Filled`, `Invalid`, and `Unspecified`."],["Each version listed provides a link to the corresponding documentation for that version of the `ParameterState` enum."]]],[]]