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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_vcpus_ram(self, vcpus, ram):
 """ Set the number of vCPU cores and amount of RAM for the GNS3 VM. :param vcpus: number of vCPU cores :param ram: amount of RAM """


        # memory must be a multiple of 4 (VMware requirement)
        if ram % 4 != 0:
            raise GNS3VMError("Allocated memory {} for the GNS3 VM must be a multiple of 4".format(ram))

        available_vcpus = psutil.cpu_count(logical=False)
        if vcpus > available_vcpus:
            raise GNS3VMError("You have allocated too many vCPUs for the GNS3 VM! (max available is {} vCPUs)".format(available_vcpus))

        try:
            pairs = VMware.parse_vmware_file(self._vmx_path)
            pairs["numvcpus"] = str(vcpus)
            pairs["memsize"] = str(ram)
            VMware.write_vmx_file(self._vmx_path, pairs)
            log.info("GNS3 VM vCPU count set to {} and RAM amount set to {}".format(vcpus, ram))
        except OSError as e:
            raise GNS3VMError('Could not read/write VMware VMX file "{}": {}'.format(self._vmx_path, e))