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The Infix module defines operators for common bind operations
val (>>=) : 'a m -> ('a -> 'b m) -> 'b m
val (=<<) : ('a -> 'b m) -> 'a m -> 'b m
val (>>) : 'a m -> 'b m -> 'b m
val (<<) : 'b m -> 'a m -> 'b m
val (>|=) : 'a m -> ('a -> 'b) -> 'b m
val (=|<) : ('a -> 'b) -> 'a m -> 'b m