Method get_param_as_str

codegenr/src/helpers/handlebars_ext.rs:47–53

(&self, index: usize)

    let len = self.params().len();
    if len < count {
      Err(RenderError::new(format!(
        "`{}` helper needs at less {} arguments.",
        helper_name, count
      )))
    } else {
      Ok(())
    }
  }

  fn get_param_as_str(&self, index: usize) -> Option<&str> {