code: function filteredRegion(state) {
          var _this2 = this;
  
          var filteredRegion = '';
  
          var _loop = function _loop(region) {
              if ({}.hasOwnProperty.call(_this2._regionMap, region)) {
                  _this2._regionMap[region].some(function (el, i, arr) {
                      if (stringHelpers.removeAccent(el.toLowerCase()) === stringHelpers.removeAccent(state.toLowerCase())) {
                          filteredRegion = region;
                      }
                  });
              }
          };
  
          for (var region in this._regionMap) {
              _loop(region);
          }
  
          return filteredRegion;
      }
docs: Get Brazilian region for an state initials given
  
  @param  {String}  state  Initials state (e.g. 'SP')
  @return {String}         Region (Norte, Sul, etc.)
  @example
  locationHelpers.filteredRegion('SP'); // Sudeste