Assign is a let statement.

Atom is an atom.

Call is a call expression.

Comment is a line comment.

GroupExpr is a yok grouped expression.

Identifier is a yok identifier.

InfixExpr is a yok infix expression.

NewLine is a solo new line.

PrefixExpr is a yok prefix expression.

Script represents an entire yok script.

StmtExpr is any statement that consists of a single expression.

String is a string literal.

Expr is an expression in an AST.

Node is a valid AST node.

Stmt is a statement in an AST.