code: def rectarea(r):
      """Return the area of rectangle <r>"""
      return (r[1][0] - r[0][0]) * (r[1][1] - r[0][1])
  
file_path: pdftabextract/pdftabextract/geom.py
imports: import math
  import numpy
label_desc: Use image node_id 11 for calling a global function with example usage: rectarea(r) and returns: unknown