GH-75746
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Validate extension JSON: Error: Field 'classes/CodeEdit/methods/add_code_completion_option/arguments': size changed value in new API, from 6 to 7.
Validate extension JSON: Error: Hash changed for 'classes/CodeEdit/methods/add_code_completion_option', from EC613224 to 611C3D20. This means that the function has changed and no compatibility function was provided.

Added an optional parameter with a default value. No adjustments should be necessary.
