attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "transpose_a"
    value {
      b: false
    }
  }
  attr {
    key: "transpose_b"
    value {
      b: false
    }
  }
}
node {
  name: "sequential/quant_dense/BiasAdd/ReadVariableOp/resource"
  op: "Const"
  attr {
    key: "dtype"
    value {

REGISTER_OP("TestNumAttrsOp")
    .Attr("x1: int = -10")
    .Attr("y1: int = 1")
    .Attr("x2: float = 0.0")
    .Attr("y2: float = -3.0");

REGISTER_OP("TestNonNumAttrsOp")
    .Attr("z: shape")
    .Attr("x: string = 'hello'")
    .Attr("y: type = DT_FLOAT");

REGISTER_OP("TestThreeInputsOp")
    .Input("x: T")
    .Input("y: T")
    .Input("z: T")
    .Output("output: T")
    .Attr("T: numbertype")

node {
  name: "args_0"
  op: "_Arg"
  attr {
    key: "T"
    value {
      type: DT_RESOURCE
    }
  }
  attr {
    key: "index"
    value {
      i: 0
    }
  }
}
node {
  name: "args_1"
  op: "_Arg"
  attr {
    key: "T"
    value {
      type: DT_RESOURCE
    }
  }
  attr {
    key: "_handle_dtypes"
    value {
      list {

node {
  name: "input0"
  op: "Placeholder"
  attr {
    key: "dtype"
    value {
      type: DT_STRING
    }
  }
  attr {
    key: "shape"
    value {
      shape {
        unknown_rank: true
      }
    }
  }
}
node {
  name: "ParseExample/Const"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {

node {
  name: "args_0"
  op: "_Arg"
  attr {
    key: "T"
    value {
      type: DT_RESOURCE
    }
  }
  attr {
    key: "index"
    value {
      i: 0
    }
  }
}
node {
  name: "args_1"
  op: "_Arg"
  attr {
    key: "T"
    value {
      type: DT_RESOURCE
    }
  }
  attr {
    key: "index"
    value {
      i: 1
    }
  }
}

node {
  name: "Case/branch_index"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
        }
        int_val: 0
      }
    }
  }
}
node {
  name: "Case/input_0"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }

	// remove all Attrs
	removeAll := func(_ []string, a Attr) Attr { return Attr{} }

	attrs := []Attr{String("a", "one"), Int("b", 2), Any("", nil)}
	preAttrs := []Attr{Int("pre", 3), String("x", "y")}

	for _, test := range []struct {
		name      string
		replace   func([]string, Attr) Attr
		addSource bool
		with      func(Handler) Handler
		preAttrs  []Attr
		attrs     []Attr
		wantText  string
		wantJSON  string
	}{

    }
  }
  attr {
    key: "data_format"
    value {
      s: "NHWC"
    }
  }
  attr {
    key: "dilations"
    value {
      list {
        i: 1
        i: 1
        i: 1
        i: 1
      }
    }
  }
  attr {
    key: "explicit_paddings"
    value {
      list {
      }
    }
  }
  attr {
    key: "padding"
    value {
      s: "SAME"

node {
  name: "input"
  op: "Placeholder"
  attr {
    key: "_user_specified_name"
    value {
      s: "input"
    }
  }
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "shape"
    value {
      shape {
      }
    }
  }
}
node {
  name: "while/maximum_iterations"
  op: "Const"
  attr {
    key: "dtype"
    value {

    }
  }
  attr {
    key: "frame_name"
    value {
      s: "while/while_context"
    }
  }
  attr {
    key: "is_constant"
    value {
      b: false
    }
  }
  attr {
    key: "parallel_iterations"
    value {
      i: 10
    }
  }
}
node {
  name: "while/Merge"
  op: "Merge"
  input: "while/Enter"
  input: "while/NextIteration"
  attr {
    key: "N"
    value {
      i: 2