def remount(from, to)
      client.post("/v1/sys/remount", JSON.fast_generate(
        from: from,
        to:   to,
      ))
      return true
    end
def remount(from, to)
      client.post("/v1/sys/remount", JSON.fast_generate(
        from: from,
        to:   to,
      ))
      return true
    end
Change the name of the mount

 @example
   Vault.sys.remount("pg", "postgres") #=> true

 @param [String] from
   the origin mount path
 @param [String] to
   the new mount path

 @return [true]