protected override SucoExpression deduceTypes(SucoTypeEnvironment env, SucoContext context)
{
var valueExpr = ValueExpression.DeduceTypes(env, context);
var innerExpr = InnerExpression.DeduceTypes(env.DeclareVariable(VariableName, valueExpr.Type), context);
return(new SucoLetExpression(StartIndex, EndIndex, VariableName, valueExpr, innerExpr, innerExpr.Type));
}