Function hash

Calculate a hash of a Stream

Namespace: GuzzleHttp\Psr7
Located at src/functions.php

Parameters summary
`Psr\Http\Message\StreamInterface`	`$stream`	Stream to calculate the hash for
`string`	`$algo`	Hash algorithm (e.g. md5, crc32, etc)
`boolean`	`$rawOutput = false`	Whether or not to use raw output

Return value summary
`string`	Returns the hash of the stream

Thrown exceptions summary
`RuntimeException`	on error.