How do I pass a value to a Class: ObservableObject a View?

Here is my ObservableObject Class I want to get a category based on which I will initialize the source with a trimmed list:

//UsersViewModel.swift
class UsersViewModel: ObservableObject {
  @Published var users: [User]
  @Published var category: String
  init(category: String) {
    self.category = category
    self.users = UserData().getUsers(byCategory: category)
  }
} 

This is my View

//UserListByCategory.swift

import SwiftUI
struct UserListByCategory: View {
    @EnvironmentObject var ud: UsersViewModel
    var body: some View {
        Text("Hello")
    }
}

struct UserListByCategory_Previews: PreviewProvider {
    static var previews: some View {
        UserListByCategory()
            .environmentObject(UsersViewModel(category: "Office"))
    }
}

I'm hardcoding the "Office" here, but is there a way to pass this to the Class?