pub fn new(out: W) -> Self {
        Formatter {
            is_key: false,
            is_current_depth_empty: true,
            out,
        }
    }
/**
    Create a new json stream.
    */
Create a new json stream.
Create a new json stream .
pub fn new(out: W) -> Self {
        Formatter {
            is_key: false,
            is_current_depth_empty: true,
            out,
        }
    }
pub fn new ( out : W ) -> Self { Formatter { is_key : false , is_current_depth_empty : true , out , } }
Create a new json stream.
Create a new json stream .
out
W