assert_empty_dots       Assert that dots are empty
is_base64               Check if an argument is a base64 string
is_base64url            Check if an argument is base64url string
is_bic                  Check if an argument is a BIC/SWIFT code string
is_cuid2                Check if an argument is a CUID2 string
is_cusip                Check if an argument is a valid CUSIP string
is_doi                  Check if an argument is a DOI string
is_email                Check if an argument is a email address string
is_figi                 Check if an argument is a valid FIGI string
is_hex                  Check if an argument is a hexadecimal string
is_hostname             Check if an argument is a hostname string
is_iban                 Check if an argument is a valid IBAN string
is_ipv4                 Check if an argument is an IPv4 address string
is_isbn                 Check if an argument is an ISBN string
is_isin                 Check if an argument is a valid ISIN string
is_issn                 Check if an argument is an ISSN string
is_lei                  Check if an argument is a valid LEI string
is_mac                  Check if an argument is a MAC address string
is_md5                  Check if an argument is an MD5 hash string
is_nanoid               Check if an argument is a Nano ID string
is_orcid                Check if an argument is an ORCID string
is_sedol                Check if an argument is a valid SEDOL string
is_semver               Check if an argument is a semantic versioning
                        string
is_sha256               Check if an argument is a SHA-256 hash string
is_ulid                 Check if an argument is a ULID string
is_url                  Check if an argument is url string
is_uuid                 Check if an argument is an UUID string
