code: def df_enc_numeric():
      df = {
          "var_A": [
              1,
              1,
              1,
              1,
              1,
              1,
              2,
              2,
              2,
              2,
              2,
              2,
              2,
              2,
              2,
              2,
              3,
              3,
              3,
              3,
          ],
          "var_B": [
              1,
              1,
              1,
              1,
              1,
              1,
              1,
              1,
              1,
              1,
              2,
              2,
              2,
              2,
              2,
              2,
              3,
              3,
              3,
              3,
          ],
          "target": [
              1,
              1,
              0,
              0,
              0,
              0,
              0,
              0,
              0,
              0,
              1,
              1,
              0,
              0,
              0,
              0,
              1,
              1,
              0,
              0,
          ],
      }
      df = pd.DataFrame(df)
  
      return df
  
file_path: feature_engine/tests/conftest.py
imports: import numpy
  import pandas
  import pytest
label_desc: Use image node_id 7 for calling a global function with example usage: df_enc_numeric() and returns: df