src/Crossjoin/Css/Format/Rule/AtKeyframes/KeyframesRule.php
public function setIdentifier($identifier)
    {
        if (is_string($identifier)) {
            $this->identifier = $identifier;
        } else {
            throw new \InvalidArgumentException(
                "Invalid type '" . gettype($identifier). "' for argument 'identifier' given."
            );
        }
    }
public function setIdentifier($identifier)
    {
        if (is_string($identifier)) {
            $this->identifier = $identifier;
        } else {
            throw new \InvalidArgumentException(
                "Invalid type '" . gettype($identifier). "' for argument 'identifier' given."
            );
        }
    }
public function setIdentifier ( $ identifier ) { if ( is_string ( $ identifier ) ) { $ this -> identifier = $ identifier ; } else { throw new \ InvalidArgumentException ( "Invalid type '" . gettype ( $ identifier ) . "' for argument 'identifier' given." ) ; } }
Sets the keyframes identifier.

@param string $identifier
Sets the keyframes identifier .