composer-require-checker.config.json
{
"symbol-whitelist" : [
"null", "true", "false",
"static", "self", "parent",
"array", "string", "int", "float", "bool", "iterable", "callable", "void", "object", "mixed", "never",
"IMAP\\Connection"
],
"php-core-extensions" : [
"Core",
"date",
"pcre",
"Phar",
"Reflection",
"SPL",
"standard"
],
"scan-files" : []
}