Function polars::export::arrow::temporal_conversions::utf8_to_timestamp_ns_scalar

pub fn utf8_to_timestamp_ns_scalar<T>(
    value: &str, 
    fmt: &str, 
    tz: &T
) -> Option<i64> where
    T: TimeZone, 

Parses value to Option<i64> consistent with the Arrow’s definition of timestamp with timezone. tz must be built from timezone (either via parse_offset or chrono-tz).