User:ExtorcDev/rmMaster.js

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var api = new mw.Api();
api.get( {
    action: 'query',
	prop: 'revisions',
	rvprop: 'content',
	rvlimit: 1,
	titles: 'Talk:Cytochrome P450 reductase'
} ).done( function ( data ) {
    console.log( data );
} );