trait SkillWrapRsp {
// Required methods
fn ret_type(&self) -> i32;
fn ret_msg(&self) -> Option<&str>;
fn err_code(&self) -> Option<i32>;
fn time_range(&self) -> Option<&str>;
fn content(&self) -> Option<&str>;
}trait SkillWrapRsp {
// Required methods
fn ret_type(&self) -> i32;
fn ret_msg(&self) -> Option<&str>;
fn err_code(&self) -> Option<i32>;
fn time_range(&self) -> Option<&str>;
fn content(&self) -> Option<&str>;
}