app/models/extensions/with-environment.ts


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import { getEnv, IStateTreeNode } from 'mobx-state-tree'
import { Environment } from '../environment'

/**
 * Adds a environment property to the node for accessing our
 * Environment in strongly typed.
 */
export const withEnvironment = (self: IStateTreeNode) => ({
  views: {
    /**
     * The environment.
     */
    get environment() {
      return getEnv<Environment>(self)
    },
  },
})