Option to select repos with a specific file in them

[DragonEggBedrockBreaking]

You can use multiple modloaders to make Minecraft mods, most commonly Forge or Fabric. Both types of mods are written in Java. All fabric mods have a file called fabric.mod.json. If I want to search for a certain thing in only fabric mods, I would like to be able to do query language:java has:fabric.mod.json. Naturally, has: is not the same as path: - has: is for returning results where the file is anywhere in that repo, whereas path: is for returning results in a specific file.