Trait polars::prelude::RenameAliasFn

pub trait RenameAliasFn: Send + Sync {
    // Required method
    fn call(&self, name: &str) -> Result<String, PolarsError>;
}

Available on crate feature lazy only.

Required Methods

fn call(&self, name: &str) -> Result<String, PolarsError>

Trait Implementations

impl Debug for dyn RenameAliasFn

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

Implementors

impl<F> RenameAliasFn for Fwhere F: Fn(&str) -> Result<String, PolarsError> + Send + Sync,