android_powrails{
   power_rails{
      name: "power.PR_1_uws"
      energy_data {
        timestamp_ms: 5
        energy_uws: 12
      }
      energy_data {
        timestamp_ms: 6
        energy_uws: 50
      }
    }
   power_rails{
      name: "power.PR_2_uws"
      energy_data {
        timestamp_ms: 5
        energy_uws: 10
      }
      energy_data {
        timestamp_ms: 6
        energy_uws: 70
      }
    }
    power_rails{
      name: "power.PR_3_uws"
      energy_data {
        timestamp_ms: 5
        energy_uws: 8
      }
      energy_data {
        timestamp_ms: 6
        energy_uws: 15
      }
    }
}