The generated file name.
The decoded mappings as an array of line arrays. Each line is an array of segments, where each segment is [generatedColumn, sourceIndex, originalLine, originalColumn, nameIndex?].
The list of symbol names used in mappings.
The list of original source files.
The original source contents (if includeContent was true).
The source map version (always 3).
The list of source indices that should be excluded from debugging.
A decoded source map with mappings as an array of arrays instead of VLQ-encoded string.