def set(key, value, overwrite: true)
      result = if overwrite
        self.connection.hset(@key, key, value)
      else
        self.connection.hsetnx(@key, key, value)
      end

      return coerce_bool(result)
    end
def set(key, value, overwrite: true)
      result = if overwrite
        self.connection.hset(@key, key, value)
      else
        self.connection.hsetnx(@key, key, value)
      end

      return coerce_bool(result)
    end
Sets or updates the value at key
 @param [#to_s] key the hash key
 @param [#to_s] value the new value to set
 @return [Boolean] true if the field was set (not updated!), false otherwise