input: 
  from typing import List
  
  def vowelCheck(inputString: str) -> str:
      """ This function identifies and returns any vowel within the provided string.
      If there are multiple vowels, only the first one encountered is returned.
      >>> vowelCheck('Hello World')
      'e'
      >>> vowelCheck('bcdfg')
      """
  
output:     vowels = "aeiouAEIOU"
      for char in inputString:
          if char in vowels:
              return char
      return ""