input: def removeDuplicates(arr: List[str]) -> List[str]:
      result = []
      
      # traverse for all elements
      for i in arr:
          
          # check if exists in result
          if i not in result:
              result.append(i)
      
      # return result
      return result
      """Remove all duplicates from a given array of strings and return the resulting array.
      >>> removeDuplicates(['a', 'b', 'a', 'c', 'c', 'd'])
      ['a', 'b', 'c', 'd']
      """
output:     result = []
      
      # traverse for all elements
      for i in arr:
          
          # check if exists in result
          if i not in result:
              result.append(i)
      
      # return result
      return result