validate_estimation_options

def validate_estimation_options(options_dict=None):
    """ Validates an options dictionary.

    Args:
        options_dict: Dictionary with updates to default_values

    Returns:
        options_dict: Updated dictionary

    """
    validate = {'max_iteration':
                    lambda x: isinstance(x, int) and x > 0,
                'distribution':
                    callable,
                'quadrature_bounds':
                    lambda x: isinstance(x, (tuple, list)) and (x[1] > x[0]),
                'quadrature_n':
                    lambda x: isinstance(x, int) and x > 7}
    
    # A complete options dictionary
    full_options = default_options()
    
    if options_dict:
        if not isinstance(options_dict, dict):
            raise AssertionError("Options must be a dictionary got: "
                                f"{type(options_dict)}.")

        for key, value in options_dict.items():
            if not validate[key](value):
                raise AssertionError("Unexpected key-value pair: "
                                     f"{key}: {value}. Please see "
                                     "documentation for expected inputs.")

        full_options.update(options_dict)

    return full_options