GoogleGemini component has only one server action GenerateContent, which takes 2 input parameters and has one Output parameter mentioned below - 

GenerateContent (Server Actioan) - Use the GenerateContent method to generate a response from the model given an input Query.

Input Parameters

Query (Text, Mandatory) - Query for which content will be generate.

APIKey (Text, Mandatory)  - Your Google Gemini API key. browse here to get your API key - Google Gemini API Key

Output Parameter

Response (Text) - Generated content for given query.