Derive Macro scylla::macros::IntoUserType

#[derive(IntoUserType)]
{
    // Attributes available to this derive:
    #[scylla_crate]
}

#[derive(IntoUserType)] allows to pass struct a User Defined Type Value in queries

Works only on simple structs without generics etc

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Documentation for this macro can only be found in scylla crate - not in scylla-macros nor in scylla-cql. This is because of rustdocs limitations that are hard to explain here.