toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
final sha1Hex = _sha1
.map((b) => b.toRadixString(16).padLeft(2, '0').toUpperCase())
.join(':');
return 'X509Certificate(\n'
' Subject: $_subject\n'
' Issuer: $_issuer\n'
' SHA-1: $sha1Hex\n'
' Valid from: $_startValidity\n'
' Valid until: $_endValidity\n'
')';
}