code: public function where($field, $value)
      {
          $this->wheres[$field] = $value;
          $this->parseQueries();
          return $this;
      }
docs: Search record by an equal criteria.
  Could be multiple 'wheres' into a single request
  i.e: ('First Name', 'Cristian')
  
  @param $field string
  @param $value string
  @return SearchRecords