# swizzle method Null safety

Performs a concatenation operation on the list of signals, where index 0
of this list is the *most* significant bit(s).

This is the one you should use if you're writing something like
SystemVerilog's `{}`

notation. If you call swizzle on `[a, b, c]`

you
would get a single output Logic where the bits in `a`

are the most
significant (highest) bits.

If you want the opposite, check out rswizzle.

## Implementation

`Logic swizzle() => Swizzle(this).out;`