Trailing EOL token for the last physical line of this segment.
For segments that end at EOF without a trailing newline, this is ''.
The parsed key name (e.g., APP_SETTING).
Segment kind.
Prefix before the key (indentation and optional export token).
Preserved verbatim.
Quote style when the value was quoted in the source.
Raw text for the segment, including EOL tokens.
Separator including surrounding whitespace (e.g., " = " or "=").
Suffix after the value token on the closing line (typically inline comment + spaces). Preserved verbatim.
Value content (without surrounding quotes).
Note: multiline values use \n internally regardless of file EOL.
Whitespace between separator and the start of the value token (preserved).
A KEY=VALUE assignment segment.
Supports single-line and multi-line quoted values (double/single quotes).