code: def setup(self, nrows):
      N = 100000
      self.gen = ((x, (x * 20), (x * 100)) for x in range(N))
  
imports: import numpy
  import pandas
  from pandas import NA, Categorical, DataFrame, Float64Dtype, MultiIndex, Series, Timestamp, date_range
  from .pandas_vb_common import setup
label_desc: Use image node_id 1 for calling the FromRecords obj's underlying member method code with example usage: obj.setup(nrows) without return types