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// Copyright 2016 Michal Witkowski. All Rights Reserved.
// See LICENSE for licensing terms.
/*
Package `metautils` provides convenience functions for dealing with gRPC metadata.MD objects inside
Context handlers.
While the upstream grpc-go package contains decent functionality (see https://github.com/grpc/grpc-go/blob/master/Documentation/grpc-metadata.md)
they are hard to use.
The majority of functions center around the NiceMD, which is a convenience wrapper around metadata.MD. For example
the following code allows you to easily extract incoming metadata (server handler) and put it into a new client context
metadata.
nmd := metautils.ExtractIncoming(serverCtx).Clone(":authorization", ":custom")
clientCtx := nmd.Set("x-client-header", "2").Set("x-another", "3").ToOutgoing(ctx)
*/
package metautils
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