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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _build_kernel(self, kernel_source, compile_flags=()):
 """Convenience function for building the kernel for this worker. Args: kernel_source (str):
 the kernel source to use for building the kernel Returns: cl.Program: a compiled CL kernel """

        return cl.Program(self._cl_context, kernel_source).build(' '.join(compile_flags))