def vblk_write(self, address, file_name=None):
cmd = ["<STR_LIT>", self.envs, "<STR_LIT>" % address]<EOL>if file_name:<EOL><INDENT>cmd += ["<STR_LIT>".format(file_name)]<EOL><DEDENT>status, _, _ = cij.ssh.command(cmd, shell=True)<EOL>return status<EOL>
nvm_vblk write