code: def build(term_to_index_dict):
  		'''
  		Parameters
  		----------
  		term_to_index_dict: term -> idx dictionary
  
  		Returns
  		-------
  		IndexStore
  		'''
  		idxstore = IndexStore()
  		idxstore._val2i = term_to_index_dict
  		idxstore._next_i = len(term_to_index_dict)
  		idxstore._i2val = [None for _ in range(idxstore._next_i)]
  		for term, idx in idxstore._val2i.items():
  			idxstore._i2val[idx] = term
  		return idxstorf build(term_to_index_dict):
  		'''
  		Parameters
  		----------
  		term_to_index_dict: term -> idx dictionary
  
  		Returns
  		-------
  		IndexStore
  		'''
  		idxstore = IndexStore()
  		idxstore._val2i = term_to_index_dict
  		idxstore._next_i = len(term_to_index_dict)
  		idxstore._i2val = [None for _ in range(idxstore._next_i)]
  		for term, idx in idxstore._val2i.items():
  			idxstore._i2val[idx] = term
  		return idxstore
docs: Parameters
  		----------
  		term_to_index_dict: term -> idx dictionary
  
  		Returns
  		-------
  		IndexStore