def create_k_mer_set(seq, kmer_len, stride_len):
	"""
	Create set of k-mers from the sequence.

	Parameters
	----------
	seq : string sequence to perform bottom-k sketch on
	kmer_len : int the length of the k-mers of the sequence
	stride_len : int the stride length in extracting k-mers from the sequence

	Returns
	-------
	kmer_set : set of strings
		The set of k-mers from the sequence
	"""
	kmer_set = set()
	i = 0
	while i + kmer_len < len(seq): 
		kmer = seq[i:i+kmer_len]
		kmer_set.add(kmer)
		i += stride_len

	return kmer_set