GETBIT
Syntax
        GETBIT key offset
- Available since:
 - 2.2.0
 - Time complexity:
 - O(1)
 - ACL categories:
 - 
              
                
@read,@bitmap,@fast, 
Returns the bit value at offset in the string value stored at key.
When offset is beyond the string length, the string is assumed to be a contiguous space with 0 bits. When key does not exist it is assumed to be an empty string, so offset is always out of range and the value is also assumed to be a contiguous space with 0 bits.
Examples
RESP2/RESP3 Reply
The bit value stored at offset, one of the following:
- Integer reply: 
0. - Integer reply: 
1.