Based on the information provided in the extracts, we can define a permission model using the Ory Permission Language (OPL) for your reporting application. OPL is a developer-friendly configuration language defined as a subset of TypeScript. It's designed to be quick to learn and has a familiar source in contrary to other, proprietary languages used to represent permissions. Here's a simplified example of how you might define the different user groups and their access levels to the different reports in your application using OPL:

typescript import { Namespace, Context } from "@ory/keto-namespace-types"  class User implements Namespace {}  class Report implements Namespace {   related: {     financialViewers: User[]     marketingViewers: User[]     communityViewers: User[]   }    permits = {     viewFinancial: (ctx: Context): boolean => this.related.financialViewers.includes(ctx.subject),     viewMarketing: (ctx: Context): boolean => this.related.marketingViewers.includes(ctx.subject),     viewCommunity: (ctx: Context): boolean => this.related.communityViewers.includes(ctx.subject),   } }

In this example, we define a

Report

class with relationships to different types of viewers (

financialViewers

,

marketingViewers

,

communityViewers

). These relationships represent the different user groups in your application that have access to the different types of reports. We then define permissions (

viewFinancial

,

viewMarketing

,

viewCommunity

) that check if a user is included in the corresponding viewer group. These permissions can be used to control access to the different types of reports in your application. Please note that this is a simplified example and you might need to adjust it to fit the specific needs of your application. For more information on how to define a permission model using OPL, you can refer to the [Ory documentation](https://www.ory.sh/docs/keto/modeling/create-permission-model).