input: from typing import List
  
  
  def linearSearch(search_item: str, array: List[str]) -> int:
      """ Performs a linear search for the search_item in the given array.
      If found, returns the position of the search_item in the array,
      otherwise returns -1.
      >>> linearSearch('school', ['school', 'hospital', 'bookstore', 'mall', 'theatre'])
      0
      >>> linearSearch('market', ['school', 'hospital', 'bookstore', 'mall', 'theatre'])
      -1
      """
      for i in range(len(array)):
          if array[i] == search_item:
              return i
      return -1
output:     for i in range(len(array)):
          if array[i] == search_item:
              return i
      return -1