def srs_distribution(item_type = "all")
      raise ArgumentError, "Please use a valid SRS type (or none for all types)" if !ITEM_TYPES.include?(item_type)

      response = api_response("srs-distribution")
      srs_distribution = response["requested_information"]

      return srs_distribution if item_type == "all"
      return srs_distribution[item_type]
    end
def srs_distribution(item_type = "all")
      raise ArgumentError, "Please use a valid SRS type (or none for all types)" if !ITEM_TYPES.include?(item_type)

      response = api_response("srs-distribution")
      srs_distribution = response["requested_information"]

      return srs_distribution if item_type == "all"
      return srs_distribution[item_type]
    end
Gets the counts for each SRS level and item types.

 @param item_type [String] the SRS level that will be returned.
 @return [Hash] the SRS information for each level for the user.