parameters: (val, encoding='utf8', hash_key=None)
return_statement: return h
docstring: Hash a single tuple efficiently
  
      Parameters
      ----------
      val : single tuple
      encoding : string, default 'utf8'
      hash_key : string key to encode, default to _default_hash_key
  
      Returns
      -------
      hash
docstring_summary: Hash a single tuple efficiently
docstring_tokens: Hash a single tuple efficiently
function: def hash_tuple(val, encoding='utf8', hash_key=None):
      """
      Hash a single tuple efficiently
  
      Parameters
      ----------
      val : single tuple
      encoding : string, default 'utf8'
      hash_key : string key to encode, default to _default_hash_key
  
      Returns
      -------
      hash
  
      """
      hashes = (_hash_scalar(v, encoding=encoding, hash_key=hash_key)
                for v in val)
  
      h = _combine_hash_arrays(hashes, len(val))[0]
  
      return h
function_tokens: def hash_tuple ( val , encoding = 'utf8' , hash_key = None ) : hashes = ( _hash_scalar ( v , encoding = encoding , hash_key = hash_key ) for v in val ) h = _combine_hash_arrays ( hashes , len ( val ) ) [ 0 ] return h