How to handle multiple parameterized variants of the same activity in Brightway2.5?

I'm currently working with parameters in Brightway2.5, but the documentation is not very exhaustive regarding parameterization. I'm hoping someone can point me toward the best approach for handling this scenario.

In my database, I’ve defined an activity, for example, Polymer A. However, there are cases where slightly different variants of Polymer A are used. Instead of exhaustively defining each variant as a new activity, I'm wondering:

Is there a way to use parameters or formulas to define these variants on the fly?

A key requirement is that a particular output (i.e., a consumer) should be able to use multiple variants of the same activity simultaneously.

For example:

• Consumer X should be able to consume 10 units of Polymer A with a parameter I = 0
• And at the same time, consume 5 units of Polymer A with I = 7

In principle, there could be an infinite number of such Polymer A variants. So:

What is the recommended way to model this in Brightway2.5?

If you need different variants of the same product that are consumed by other product then the parameters are not what you want. Parameters or other options such as bw_processing are ways of modifying on the fly an activity. i.e. you can modify values of your technosphere of biosphere matrix, but you can't create new columns on the fly.

If `product_x` consumes two different variants of a polymer, then you'll need to create first the variants as activities in the database. You can programmatically create the variants.