2.2.4.5.2 ArgumentErrorDetailCA/ParameterName
The ParameterName element contains a human-readable error string containing the name of the argument that caused the error.<6> The value of this element is implementation-specific; therefore, a client MUST NOT rely on the value.
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<xs:element minOccurs="0" name="ParameterName" nillable="true" type="xs:string" />