How to set prop "lazy" on CInput?

I have tried both ways,

lazy=300

or

lazy="300"

and I still get the same error:

[Vue warn]: Invalid prop: type check failed for prop "lazy". Expected Boolean, Number, got String with value "300".

Here is how I currently have it set up.

          <CInput type="input" 
                  v-model="search"
                  placeholder="Search..." 
                  class="DDtokenSearch"
                  size="sm"
                  lazy="300"
                  ></CInput>