anchor.diff:  RETURN 1
   ----
   
  -==== Casing
  +=== Casing
   
   . Write keywords in upper case.
   +
  
positive.code: RETURN rand, map.propertyKey, count(n)
  ----
  
  ==== Patterns
  
  . When patterns wrap lines, break after arrows, not before.
  +
  
negative.code: RETURN vehicle.mileage
  ----
  
  === Spacing
  
  . For literal maps:
  .. No space between the opening brace and the first key
  