HMGET key field [field ...]
Available since: 2.0.0
Time complexity: O(N) where N is the number of fields being requested.
ACL categories:
@read
@hash
@fast
Returns the values associated with the specified fields in the hash stored at
key.
For every field that does not exist in the hash, a nil value is returned.
Because non-existing keys are treated as empty hashes, running HMGET against
a non-existing key will return a list of nil values.
Return
Array reply: list of values associated with the given fields, in the same order as they are requested.