code: def bench_dropna(benchmark, column):
      benchmark(column.dropna)
  
file_path: cudf/python/cudf/benchmarks/internal/bench_column.py
imports: import pytest
  import pytest_cases
  from utils import benchmark_with_object, make_boolean_mask_column, make_gather_map
label_desc: Use image node_id 2 for calling a global function with example usage: bench_dropna(benchmark, column) without return types