code: def copy(self, deep=True):
      closed = self.closed
      struct_copy = super().copy(deep=deep)
      return IntervalColumn(
          size=struct_copy.size,
          dtype=IntervalDtype(struct_copy.dtype.fields["left"], closed),
          mask=struct_copy.base_mask,
          offset=struct_copy.offset,
          null_count=struct_copy.null_count,
          children=struct_copy.base_children,
          closed=closed,
      )
  
file_path: cudf/python/cudf/cudf/core/column/interval.py
imports: from typing import Optional
  import pandas
  import pyarrow
  import cudf
  from cudf.core.column import StructColumn
  from cudf.core.dtypes import CategoricalDtype, IntervalDtype
label_desc: Use image node_id 6 for calling the IntervalColumn obj's underlying member method code with example usage: obj.copy(deep) and returns: IntervalColumn