code: public ChronicleMapBuilder<K, V> mapMethods(MapMethods<K, V, ?> mapMethods) {
          Objects.requireNonNull(mapMethods);
          this.methods = mapMethods;
          return this;
      }
docs: Inject your SPI around logic of all {@code ChronicleMap}'s operations with individual keys:
  from {@link ChronicleMap#containsKey} to {@link ChronicleMap#acquireUsing} and
  {@link ChronicleMap#merge}.
  <p>
  <p>This affects behaviour of ordinary map calls, as well as <i>remote calls</i>.
  <p>
  <p>This is a <a href="#jvm-configurations">JVM-level configuration</a>.
  
  @return this builder back