pub unsafe extern "C" fn readstat_insert_float_value(
writer: *mut readstat_writer_t,
variable: *const readstat_variable_t,
value: f32,
) -> readstat_error_tpub unsafe extern "C" fn readstat_insert_float_value(
writer: *mut readstat_writer_t,
variable: *const readstat_variable_t,
value: f32,
) -> readstat_error_t