concrete/src/Database/CharacterSetCollation/Resolver.php
public function setCollation($collation)
    {
        if ($collation !== null) {
            $collation = $this->normalizeCollation($collation);
        }
        $this->collation = $collation;

        return $this;
    }
public function setCollation($collation)
    {
        if ($collation !== null) {
            $collation = $this->normalizeCollation($collation);
        }
        $this->collation = $collation;

        return $this;
    }
public function setCollation ( $ collation ) { if ( $ collation !== null ) { $ collation = $ this -> normalizeCollation ( $ collation ) ; } $ this -> collation = $ collation ; return $ this ; }
Set the collation.

@param string|null|mixed $collation use NULL to use the default collation

@return $this
Set the collation .