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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 set_grb_start_end(cp, start, end):
 """ Function to update analysis boundaries as workflow is generated Parameters cp : pycbc.workflow.configuration.WorkflowConfigParser object The parsed configuration options of a pycbc.workflow.core.Workflow. start : int The start of the workflow analysis time. end : int The end of the workflow analysis time. Returns -------- cp : pycbc.workflow.configuration.WorkflowConfigParser object The modified WorkflowConfigParser object. """

    cp.set("workflow", "start-time", str(start))
    cp.set("workflow", "end-time", str(end))

    return cp