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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 preRun_(self):
 """Create the shared memory client immediately after fork """

        self.report("preRun_")
        super().preRun_()
        self.client = ShmemRGBClient(
            name=self.shmem_name,
            n_ringbuffer=self.n_buffer,   # size of ring buffer
            width=self.image_dimensions[0],
            height=self.image_dimensions[1],
            # client timeouts if nothing has been received in 1000 milliseconds
            mstimeout=1000,
            verbose=False
        )