typedef struct TF_OperationDescription TF_OperationDescription;

// Operation that has been added to the graph. Valid until the graph is
// deleted -- in particular adding a new operation to the graph does not
// invalidate old TF_Operation* pointers.
typedef struct TF_Operation TF_Operation;

// Represents a specific input of an operation.
typedef struct TF_Input {
  TF_Operation* oper;

	for len(c.ptrKeys) > 0 {
		dtype := c.ptrKeys[0]
		dtypeKey := dtype.String()
		c.ptrKeys = c.ptrKeys[1:]
		ptrs := c.ptrs[dtypeKey]
		delete(c.ptrs, dtypeKey)

		// Note Type might invalidate c.ptrs[dtypeKey].
		t := c.Type(dtype, pos)
		for _, ptr := range ptrs {
			ptr.Go.(*ast.StarExpr).X = t.Go
			ptr.C.Set("%s*", t.C)
		}
	}
}