code: def col_kills(grid, i, j):
      num = 0
      len_col = len(grid)
      while i < len_col and grid[i][j] != "W":
          if grid[i][j] == "E":
              num += 1
          i += 1
      return num
  
file_path: keon-algos/algorithms/matrix/bomb_enemy.py
imports: import unittest
label_desc: Use image node_id 3 for calling a global function with example usage: col_kills(grid, i, j) and returns: num