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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 Create(self, project_id, start_options=None, deadline=10):
 """Creates an emulator instance. This method will wait for up to 'deadline' seconds for the emulator to start. Args: project_id: project ID start_options: a list of additional command-line options to pass to the emulator 'start' command deadline: number of seconds to wait for the datastore to respond Returns: a DatastoreEmulator Raises: IOError: if the emulator could not be started within the deadline """

    return DatastoreEmulator(self._emulator_cmd, self._working_directory,
                             project_id, deadline, start_options)