phpstan fails on migrations when string('column', 'MAX') is used

[oprudkyi]

spanner supports nonstandard STRING(MAX) column def https://cloud.google.com/spanner/docs/reference/standard-sql/data-definition-language#scalars

in migrations it worked like

$table->string('column', 'MAX');

while it works, phpstan fires error

Parameter #2 $length of method Illuminate\Database\Schema\Blueprint::string() expects int|null, string given.

while @phpstan-ignore-next-line helps probably some more advanced solution will be more usable

[taka-oyama]

One potential way to resolve this is to interpret -1 as MAX so it is compatible with phpdoc.