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1. Is this a client library issue or a product issue?
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   Please create an issue in the support console to ensure a timely response.

If the support paths suggested above still do not result in a resolution, please provide the following details.

Environment details

• OS:
• Node.js version: 16
• npm version: 8
• @google-cloud/bigquery version: 6.0.2

Steps to reproduce

1- create a query with a parameter of type Array of struct,
2- try to define the type for the parameter

Please see the problem and solution here

Making sure to follow these steps will guarantee the quickest resolution possible.

Thanks!