Attribute value of true is not rendering correctly in XMLBuilder

[ATXadam]

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Description

When using XMLBuilder to render an attribute with a value (string or bool) of 'true', XMLBuilder does not render the value as a string in the attribute.

Input

{"test": {"@_isTrue": true}}

Code

const { XMLBuilder } = require('fast-xml-parser')
let builder = new XMLBuilder({ ignoreAttributes: false});
builder.build({"test": {"@_isTrue": true}})

Output

<test isTrue></test>

expected data

<test isTrue="true"></test>

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[ATXadam]

After starting to look through the code, I saw suppressBooleanAttributes in the XMLBuilder options, setting this to false resolves the issue. https://naturalintelligence.github.io/fast-xml-parser/ "Allow Boolean Attributes" did not set this flag going from JSON to XML it appears.

const { XMLBuilder } = require('fast-xml-parser');
let builder = new XMLBuilder({ ignoreAttributes: false, suppressBooleanAttributes: false});
builder.build({"test": {"@_isTrue": true}});

Yields

<test isTrue="true"></test>