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A subscription is created when one pico requests it by raising a wrangler:subscription event, which initiates a chain of events between this pico and another pico (for details, see the Managing Subscriptions API page). When the other pico accepts the request, the subscription is established. An established subscription is represented within each pico by an entity variable (named established). Here, “Bob” has requested a subscription with “Alice” and she has accepted. From Alice’s perspective, this is the information stored by the io.picolabs.subscription ruleset:
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