code: function sgStart(ctx) {
    const statementGroupParts = {
  		previousStatementGroup: this._statementGroup,
  		previousStatements: this._statements,
      statements: [],
      location: Location.FromANTLRNode(ctx),
      character: null,
  	}
  
  	this._statementGroup = statementGroupParts;
  	this._statements = statementGroupParts.statements;
  }
docs: StatementGroup utils!