code: function bindLocal(env, scope, name, value) {
      scope.localPresent[name] = true;
      scope.locals[name] = value;
    }
docs: Host Hook: bindLocal
  
  @param {Environment} env
  @param {Scope} scope
  @param {String} name
  @param {any} value
  
  Corresponds to entering a template with block arguments.
  
  This hook is invoked when a local variable for a scope has been provided.
  
  The host must ensure that child scopes reflect the change in future calls
  to the `get` hook.