Source position information for AST nodes.
Positions are represented as one-based {line, column} tuples. They refer to
the original Markdown source and are not updated when a document is modified
programmatically.
See Comrak's Sourcepos.
Summary
Types
@type t() :: %MDExNative.Comrak.Sourcepos{ end: {pos_integer(), pos_integer()}, start: {pos_integer(), pos_integer()} }