package graphql_ppx

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exception Option_unwrap_error of string
val map : ('a -> 'b) -> 'c option -> 'd option
val flat_map : ('a -> 'b option) -> 'c option -> 'b option
val unsafe_unwrap : reason:string -> 'a option -> 'b
val get_or_else : 'a -> 'b option -> 'c
val is_some : 'a option -> bool
val is_none : 'a option -> bool