/**
 * Get one more values from a collection. For large collections, use each.
 * options can be a string key name (including wildcards), or an object
 * { key, created_after, created_before, inserted_before, inserted_after }
 * Throws if created AND inserted are specified
 * If no wild card or query included, the value will be written to state.data (or throw if not found)
 * If a wild card or query is included, an array of values will be written to state.data
 */
collections.get(name, query) // writes to state.data

/**
 * Upserts one or more values, as a { key, value } pair, to the named collection
 * If any errors are returned by the server, this will be thrown
 */
collections.set(name, data, options) // throws if errors

/**
 * Remove one or more values from the collection
 * Options can be a string key or a query object
 */
collections.remove(name, query, options) 

/**
 * Iterate over values in a collection which match the query
 * Query can be a wildcard string or object
 * The callback will be invoked with { key, value } on state.data
 * Or what if we do `(state, key, value)` ? because the first thing you need to do
 * is deconstruct anyway
 */
collections.each(name, query, (state) => {})

{
  collections_key: /* a JWT */
  collections_endpoint: /* set by the worker  */
}