System: You are an API parameter validator. Generate parameters strictly according to the API specification. Only use parameters defined in required_parameters and optional_parameters. Return an empty dict if no parameters are required and optional parameters are not needed.
User: Review API details:
https://qr-code-by-api-ninjas.p.rapidapi.com/v1/qrcode (GET)
Required: [{'name': 'data', 'type': 'STRING', 'description': 'Data to encode in the QR code.', 'default': 'https://api-ninjas.com'}, {'name': 'format', 'type': 'STRING', 'description': 'Image format to return. Must be one of the following: png, jpg, jpeg, eps, svg.', 'default': 'png'}]
Optional: [{'name': 'size', 'type': 'NUMBER', 'description': 'Size of the QR code image to generate. The output will be a square image with (size x size) dimensions.', 'default': ''}, {'name': 'fg_color', 'type': 'STRING', 'description': 'Foreground color of the QR code. Must be a 6-digit hex color (e.g. 00ff00 for green). Default is 000000 (black).', 'default': ''}, {'name': 'bg_color', 'type': 'STRING', 'description': 'Background color of the QR code. Must be a 6-digit hex color (e.g. 00ff00 for green). Default is ffffff (white).', 'default': ''}]
Past tests: Initial Attempt 1:
Parameters: {'data': 'https://example.com', 'format': 'jpg', 'size': 300, 'fg_color': 'ff5733', 'bg_color': 'ffffff'}
Result: Failed
Analysis: Failed - possible issues: API returned error: Expecting value: line 1 column 1 (char 0)

Initial Attempt 2:
Parameters: {'data': 'https://new-example.com', 'format': 'svg', 'size': 250, 'fg_color': '00ff00', 'bg_color': '0000ff'}
Result: Failed
Analysis: Failed - possible issues: API returned error: Expecting value: line 1 column 1 (char 0)

Recent Attempt 3:
Parameters: {'data': 'https://new-unique-example.com', 'format': 'png', 'size': 150, 'fg_color': 'ffcc00', 'bg_color': '000000'}
Result: Failed
Analysis: Failed - possible issues: API returned error: Expecting value: line 1 column 1 (char 0)

Recent Attempt 4:
Parameters: {'data': 'https://different-example.com', 'format': 'jpg', 'size': 200, 'fg_color': 'abcdef', 'bg_color': 'ff5733'}
Result: Failed
Analysis: Failed - possible issues: API returned error: Expecting value: line 1 column 1 (char 0)

Recent Attempt 5:
Parameters: {'data': 'https://fresh-example.com', 'format': 'jpeg', 'size': 400, 'fg_color': 'aabbcc', 'bg_color': 'ffccff'}
Result: Failed
Analysis: Failed - possible issues: API returned error: Expecting value: line 1 column 1 (char 0)

Used parameters: - {'bg_color': '00ff00', 'data': 'https://api-ninjas.com', 'fg_color': 'ff0000', 'format': 'jpeg', 'size': '400'}
- {'bg_color': '000000', 'data': 'https://new-unique-example.com', 'fg_color': 'ffcc00', 'format': 'png', 'size': '150'}
- {'bg_color': '0000ff', 'data': 'https://new-example.com', 'fg_color': '00ff00', 'format': 'svg', 'size': '250'}
- {'bg_color': 'ffcc00', 'data': 'https://another-example.com', 'fg_color': '000000', 'format': 'png', 'size': '200'}
- {'bg_color': 'ffffff', 'data': 'https://example.com', 'fg_color': 'ff5733', 'format': 'jpg', 'size': '300'}
- {'bg_color': 'ffccff', 'data': 'https://fresh-example.com', 'fg_color': 'aabbcc', 'format': 'jpeg', 'size': '400'}
- {'bg_color': 'ff5733', 'data': 'https://different-example.com', 'fg_color': 'abcdef', 'format': 'jpg', 'size': '200'}
- {'bg_color': 'abcdef', 'data': 'https://unique-example.com', 'fg_color': '123456', 'format': 'eps', 'size': '350'}

Generate new parameters that are different from all previous attempts.
Assistant: