human
Solve the following python programming problem given the following code:
@ classmethod 
def _from_block_and_mapping(cls, block, mapping) : 
    def _normalize(val) : 
        if isinstance (val, list) : 
            return val [(- 1)] 
return val 
kwargs = { 
        
} 
    dynamic_properties = { 
        
} 
    if isinstance (block, dict) : 
        for (k, v) in block.items () : 
            if (k in mapping) : 
                kwargs [mapping [k]] = v 
else : 
                dynamic_properties [kwargs] = _normalize (v) 
return cls (block, dynamic_properties = dynamic_properties, ** kwargs) 

    
    

    Fix the buggy line: dynamic_properties [kwargs] = _normalize (v)
assistant
#Here is Python program to fix the buggy line: dynamic_properties [kwargs] = _normalize (v)
.

dynamic_properties [k] = _normalize (v)