blocks {
  idx: 0
  parent_idx: -1
  vars {
    name: "recordio_reader"
    type {
      type: RECORDIO_READER
    }
  }
  vars {
    name: "batch_reader"
    type {
      type: BATCH_READER
    }
  }
  
  ops {
    outputs {
      parameter: "reader"
      arguments: "recordio_reader"
    }
    type: "create_recordio_reader"
    attrs {
      name: "file"
      type: string
      string: "./data.recordio"
    }
    attrs {
      name: "file"
      type: shape
    }
  }  
  
  ops {
    input {
      parameter: "reader"
      arguments: "recordio_reader"
    }
    outputs {
      parameter: "reader"
      arguments: "batch_reader"
    }
    type: "create_batch_reader"
    attrs {
      name: "batch_size"
      type: int
      int: 100
    }
  }
  
  ops {
    inputs {
      parameter: "reader"
      arguments: "batch_reader"
    }
    type: "reader_loop"
    attrs {
      name: "sub_block"
      type: BLOCK
      block_idx: 1
    }
  }
}
blocks {
  idx: 1
  parent_idx: 0
  vars {
    name: "x"
    type {
      type: LOD_TENSOR
      lod_tensor {
        tensor {
          data_type: FLOAT32
          dims: 13
        }
      }
    }
    persistable: false
  }
  vars {
    name: "y"
    type {
      type: LOD_TENSOR
      lod_tensor {
        tensor {
          data_type: FLOAT32
          dims: 1
        }
      }
    }
    persistable: false
  }
  ops {
    inputs {
      parameter: "reader"
      arguments: "batch_reader"
    }
    outputs {
      parameter: "Out"
      arguments: "x"
    }
    outputs {
      parameter: "Out"
      arguments: "y"
    }
    type: "read"
  }
}