Image Reader Gemini OCR

## HTTP Gemini OCR Setting

Define Gemini Model on URL

https://generativelanguage.googleapis.com/v1beta/models/[Gemini Model]:generateContent

example:
https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent

...

Authentication
Generic Credential Type

Generic Auth Type
Query Auth

Query Auth
+ Create new credential (take if from https://aistudio.google.com/)

...

Body Content Type
JSON

Specify Body
Using JSON

JSON
{
  "contents": [
    {
      "role": "user",
      "parts": [
        {
          "inlineData": {
            "mimeType": "image/jpeg",
            "data": "{{ $json.data }}"
          }
        },
        {
          "text": "Extract text"
        }
      ]
    }
  ]
}