{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"#[diag(parse_frontmatter_invalid_opening_preceding_whitespace)]"}]}
#[diag(parse_frontmatter_invalid_opening_preceding_whitespace)]
#[derive(Diagnostic)]
pub(crate) struct FrontmatterInvalidOpeningPrecedingWhitespace {