anchor.diff:  == `pass:[#:]` and `#::` - Namespace Map Syntax
   
   Namespace map syntax was added in Clojure 1.9 and is used to specify a default
  -namespace context for keys in a map, where those keywords (or symbols) share a
  +namespace context when keys or symbols in a map where they share a
   common namespace.
   
  +The `pass:[#:ns]` syntax specifies a fully-qualified namespace map prefix n alias 
  +in the namespace map prefix with, where _ns_ is the name of a namespace and the prefix
  +precedes the opening brace `{` of the map.
  +
  +For example, the following map literal with namespace syntax:
  +[source,clojure]
  +----
  +#:person{:first "Han"
  +         :last "Solo"
  +         :ship #:ship{:name "Millennium Falcon"
  +                      :model "YT-1300f light freighter"}}
  +----
  +is read as:
  +[source,clojure]
  +----
  +{:person/first "Han"
  + :person/last "Solo"
  + :person/ship {:ship/name "Millennium Falcon"
  +               :ship/model "YT-1300f light freighter"}}
  +----
  +
  +Note that these maps represent the identical object - these are just alternate syntaxes.
  +
   `#::` can be used to auto-resolve the namespace of keyword or symbol keys
  -in a map using the current namespace. 
  +in a map using the current namespace.
   
   These two examples are equivalent:
   
  
positive.code:      :ship #::s{:name "Millennium Falcon"
                  :model "YT-1300f light freighter"}}
  ----
  will also be read as:
  [source,clojure]
  ----
  {:rebel.person/first "Han"
   :rebel.person/last "Solo"
   :rebel.person/ship {:rebel.ship/name "Millennium Falcon"
                       :rebel.ship/model "YT-1300f light freighter"}}
  ----
  
  
  or in compact form:
  [source,clojure]
  ----
  #:rebel.person{:first "Han",
                 :last "Solo",
                 :ship #:rebel.ship{:name "Millennium Falcon",
                                    :model "YT-1300f light freighter"}}
  ----
  
  * <<xref/../../reference/reader#map_namespace_syntax,Reader>>
  
negative.code: ----
  
  Similar to <<xref/../weird_characters#autoresolved_keys,autoresolved keywords>>,
  you can also use `#::alias` to auto-resolve with a namespace alias defined in
  the `ns` form:
  
  [source,clojure]
  ----
  (ns rebel.core
  