How to use the @rxweb/reactive-form-validators.RxwebValidators.minNumber function in @rxweb/reactive-form-validators

() => {
          let formBuilder = new FormBuilder();
          let formGroup = formBuilder.group({
            'maths': 60,
            'english': 10
          });
          expect(RxwebValidators.minNumber({ value:35,conditionalExpression: (x, y) => x.maths == 50 })(formGroup.controls.english)).toBeNull()
        });

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            science:['', RxwebValidators.minNumber({value:35  ,message:'Number should not be less than 35' })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            science:['', RxwebValidators.minNumber({value:35  ,message:'Number should not be less than 35' })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            maths:['', RxwebValidators.minNumber({value:35 })], 
            science:['', RxwebValidators.minNumber({value:35  ,message:'Number should not be less than 35' })], 
            english:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:(x,y) => x.maths == 50  })], 
            statstics:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:'x => x.maths == 50' })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            maths:['', RxwebValidators.minNumber({value:35 })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            maths:['', RxwebValidators.minNumber({value:35 })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            maths:['', RxwebValidators.minNumber({value:35 })], 
            statstics:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:'x => x.maths == 50' })], 
            english:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:(x,y) => x.maths == 50  })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            maths:['', RxwebValidators.minNumber({value:35 })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            maths:['', RxwebValidators.minNumber({value:35 })], 
            science:['', RxwebValidators.minNumber({value:35  ,message:'Number should not be less than 35' })], 
            english:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:(x,y) => x.maths == 50  })], 
            statstics:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:'x => x.maths == 50' })], 
        });
    }
}

ngOnInit() {
        this.resultInfoFormGroup = this.formBuilder.group({
            maths:['', RxwebValidators.minNumber({value:35 })], 
            statstics:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:'x => x.maths == 50' })], 
            english:['', RxwebValidators.minNumber({value:35  ,conditionalExpression:(x,y) => x.maths == 50  })], 
        });
    }
}