Builtin Interfaces
These are primitive types which do not have schema definitions but are the basic primitive building blocks for schemas.
Duration
Time
builtin_interfaces.Time — POSIX-style timestamp.
Wire format: 12 bytes total (4-byte CDR encapsulation header +
i32 sec + u32 nanosec). Negative sec represents pre-epoch
timestamps; :meth:to_nanos returns None in that case since the
value can't be represented as u64.
from_cdr
classmethod
from_cdr(buf: BufferLike) -> Time
Decode a standalone CDR Time buffer.
from_nanos
staticmethod
from_nanos(nanos: int) -> Time
Construct from a 64-bit nanosecond count.
to_bytes
to_bytes() -> bytes
Encode as a standalone CDR buffer (12 bytes).
to_nanos
to_nanos() -> Optional[int]
Convert to nanoseconds, or None for pre-epoch (negative sec).