This function verifies if the observation_indicator within the provided
new_confirm observations is logical. The check is performed to ensure
that the observation_indicator is of the correct type.
Value
This function is used for its side effect of checking the observation
indicator in new_confirm. If the check passes, the function returns
invisibly. Otherwise, it stops and returns an error message.
See also
Functions used for checking inputs
check_design_matrix_sparsity(),
check_group(),
check_group_date_unique(),
check_max_delay(),
check_module(),
check_modules_compatible(),
check_numeric_timestep(),
check_quantiles(),
check_timestep(),
check_timestep_by_date(),
check_timestep_by_group()
