HGET
Syntax
        HGET key field
- Available since:
 - 2.0.0
 - Time complexity:
 - O(1)
 - ACL categories:
 - 
              
                
@read,@hash,@fast, 
Returns the value associated with field in the hash stored at key.
Examples
RESP2 Reply
One of the following:
- Bulk string reply: The value associated with the field.
 - Nil reply: If the field is not present in the hash or key does not exist.
 
RESP3 Reply
One of the following:
- Bulk string reply: The value associated with the field.
 - Null reply: If the field is not present in the hash or key does not exist.