challenge
abstract fun challengeExists(@Nullable tablePrefix: String, @NotNull id: @NotNull String): Boolean(source)
Checks whether a challenge with the specified id exists.
Return
`true` if a challenge with the specified id exists, `false` otherwise.
Parameters
table
the prefix, if any, to use for the container's name.
id
the id of the challenge to check for.
Throws
if an I/O error occurs while checking for the challenge.