code: def load_supplier(fpath):
      cols_names = [
          "S_SUPPKEY",
          "S_NAME",
          "S_ADDRESS",
          "S_NATIONKEY",
          "S_PHONE",
          "S_ACCTBAL",
          "S_COMMENT",
      ]
      cols = {
          "S_SUPPKEY": np.int64,
          "S_NAME": str,
          "S_ADDRESS": str,
          "S_NATIONKEY": np.int64,
          "S_PHONE": str,
          "S_ACCTBAL": np.float64,
          "S_COMMENT": str,
      }
      rel = pd.read_csv(
          fpath, sep="|", header=None, names=cols_names, dtype=cols
      )
      return rel
  
file_path: mars/benchmarks/tpch/loader.py
imports: import numpy
  import pandas
label_desc: Use image node_id 9 for calling a global function with example usage: load_supplier(fpath) and returns: rel