Procedure block that targets an attribute of a certain value?

Hey guys, I'm creating my first ever minecraft mod, and I'm trying to find a procedure plug in that targets an event target/entity with an attribute of a certain value. I want to target players that only have an attribute value of 1, not 0, or any other value. I can't seem to find any preexisting procedure block that does this, with the only exception being a procedure block that DOES target an event target/entity with an attribute, but not of any certain value. I tried finding a plugin that adds this potential block procedure but can't find one so far. I also don't know much about java coding, or coding at all for that matter, so I'm not sure how to create custom procedure blocks. There might be a way to do this without a custom procedure block, but I just don't know if it's possible, at least with my software. I'm using the latest version of neoforge 2025, and some help on this would be greatly appreciated.