exampl_def.proto

node {
  name: "Placeholder"
  op: "Placeholder"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "shape"
    value {
      shape {
        dim {
          size: 2
        }
      }
    }
  }
}
node {
  name: "Placeholder_1"
  op: "Placeholder"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "shape"
    value {
      shape {
        dim {
          size: 2
        }
      }
    }
  }
}
node {
  name: "Mul"
  op: "Mul"
  input: "Placeholder"
  input: "Placeholder_1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
version: 1