Module prelude

Re-exports§

ApiError
Arc: A thread-safe reference-counting pointer. ‘Arc’ stands for ‘Atomically Reference Counted’.
BTreeMap: An ordered map based on a B-Tree.
BTreeSet: An ordered set based on a B-Tree.
DateTime: ISO 8601 combined date and time with time zone.
HashMap: A hash map implemented with quadratic probing and SIMD lookup.
HashSet: A hash set implemented as a HashMap where the value is ().
IndexMap: A hash table where the iteration order of the key-value pairs is independent of the hash values of the keys.
IndexSet: A hash set where the iteration order of the values is independent of their hash values.
LazyLock: A value which is initialized on the first access.
Mutex: A mutual exclusion primitive useful for protecting shared data
OnceLock: A synchronization primitive which can nominally be written to only once.
RwLock: A reader-writer lock
Shared: Future for the shared method.
Span: A handle representing a span, with the capability to enter the span if it exists.
Utc: The UTC time zone. This is the most efficient time zone when you don’t need the local time. It is also used as an offset (which is also a dummy type).
Weak: Weak is a version of Arc that holds a non-owning reference to the managed allocation.

Any: A trait to emulate dynamic typing.
AsyncBufRead: Read bytes asynchronously.
AsyncRead: Read bytes asynchronously.
AsyncSeek: Seek bytes asynchronously.
AsyncWrite: Write bytes asynchronously.
ContextExt
Debug: ? formatting.
Deserialize: A data structure that can be deserialized from any data format supported by Serde.
DeserializeOwned: A data structure that can be deserialized without borrowing any data from the deserializer.
Future: A future represents an asynchronous computation, commonly obtained by use of async.
FutureExt: An extension trait for Futures that provides a variety of convenient adapters.
Hash: A hashable type.
Itertools: An Iterator blanket implementation that provides extra adaptors and methods.
Serialize: A data structure that can be serialized into any data format supported by Serde.
Sink: A Sink is a value into which other values can be sent, asynchronously.
Stream: A stream of values produced asynchronously.
StreamExt: An extension trait for Streams that provides a variety of convenient combinator functions.
TryFuture: A convenience for futures that return Result values that includes a variety of adapters tailored to such futures.
TryStream: A convenience for streams that return Result values that includes a variety of adapters tailored to such futures.
_: An extension trait for Futures that provides a variety of convenient adapters.

BoxFuture: An owned dynamically typed Future for use in cases where you can’t statically type your result or need to add some indirection.
BoxStream: An owned dynamically typed Stream for use in cases where you can’t statically type your result or need to add some indirection.
Result

async_trait
instrument: Instruments a function to create and enter a tracing span every time the function is called.