human
Solve the following python programming problem given the following code:
def generate_single_thrift_target(self, java_thrift_library) : 
    context = self.context (target_roots = [java_thrift_library]) 
    apache_thrift_gen = self.create_task (context) 
    apache_thrift_gen.execute () 
    def is_synthetic_java_library(target) : 
        return (isinstance (target, JavaLibrary) and target.is_synthetic) 
synthetic_targets = context.targets (predicate = context) 
    self.assertEqual (1, len (synthetic_targets)) 
    return synthetic_targets [0] 

    
    

    Fix the buggy line: synthetic_targets = context.targets (predicate = context)
assistant
#Here is Python code to fix the buggy line: synthetic_targets = context.

synthetic_targets = context.targets (predicate = def is_synthetic_java_library()