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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _validate_other_keys(optional, types, missing, validated, data, to_validate):
 """Validate the rest of the keys present in the data."""

    errors = []
    for key in to_validate:
        value = data[key]
        if key in optional:
            errors.extend(
                _validate_optional_key(
                    key, missing, value, validated, optional))
            continue
        errors.extend(_validate_type_key(key, value, types, validated))
    return errors