CamelCaseToSnakeCase converts a `camelCase` string to `snake_case`.

Deref dereferences pointer values.

ExpandPath expands a path that possible contains a tilde (~) character into the home directory of the user.

GetJSONFilenames returns all json files in the given folder.

IsNil checks if an interface value is nil or if the value nil is assigned to it.

Ref references pointer values.

SafeTimestamp returns either the UNIX timestamp of the time t or 0 if it is nil.