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import language.experimental.macros
import scala.reflect.macros.BlackboxContext
object Macros {
def implUU(c: BlackboxContext)(x: c.Tree): c.Tree = x
def implTU(c: BlackboxContext)(x: c.Expr[Int]): c.Tree = x.tree
def implUT(c: BlackboxContext)(x: c.Tree): c.Expr[Int] = c.Expr[Int](x)
def implTT(c: BlackboxContext)(x: c.Expr[Int]): c.Expr[Int] = x
def fooUU(x: Int): Int = macro implUU
def fooTU(x: Int): Int = macro implTU
def fooUT(x: Int): Int = macro implUT
def fooTT(x: Int): Int = macro implTT
}
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