Determines if a given string is a valid D-Bus object path.
You should ensure that a string is a valid D-Bus object path before passing it to Variant.object_path.
A valid object path starts with '/' followed by zero or more sequences of characters separated by '/' characters. Each sequence must contain only the characters "A-Z[0-9]_". No sequence (including the one following the final '/' character) may be empty.
| string |
a normal C nul-terminated string |
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true if |