@glimmer/wire-format

getStringFromValue: (expr: Expressions.StringValue) => string;

is: <T>(variant: number) => (value: any) => value is T;

isArgument: (val: Statement) => val is Statements.Argument;

isAttribute: (val: Statement) => val is Statements.Attribute;

isFlushElement: (value: any) => value is Statements.FlushElement;

isGet: (value: any) => value is Expressions.GetSymbol;

isHelper: (expr: Expression) => expr is Expressions.Helper;

isStringLiteral: (expr: Expression) => expr is Expressions.StringValue;