input: from typing import List
  
  
  def find_substring_matches(strings: List[str], substring: str) -> List[str]:
      """ Extract strings from the input list that include the specified substring
      >>> find_substring_matches([], 'a')
      []
      >>> find_substring_matches(['abc', 'bacd', 'cde', 'array'], 'a')
      ['abc', 'bacd', 'array']
      """
output:     return [string for string in strings if substring in string]