### Mediator model

Call:
lm(formula = bili ~ trt, data = data)

Residuals:
    Min      1Q  Median      3Q     Max 
-3.4000 -2.5000 -1.7000  0.4434 24.3000 

Coefficients:
            Estimate Std. Error t value Pr(>|t|)  
(Intercept)   2.2132     0.8784   2.520   0.0123 *
trt           0.7434     0.5532   1.344   0.1801  
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 4.594 on 274 degrees of freedom
Multiple R-squared:  0.006548,	Adjusted R-squared:  0.002923 
F-statistic: 1.806 on 1 and 274 DF,  p-value: 0.1801

### Outcome model

Call:
lm(formula = alk_phos ~ trt + bili + trt:bili, data = data)

Residuals:
    Min      1Q  Median      3Q     Max 
-1783.9 -1053.4  -618.9    -2.2 12092.2 

Coefficients:
            Estimate Std. Error t value Pr(>|t|)    
(Intercept)  2163.95     512.54   4.222  3.3e-05 ***
trt          -240.62     317.49  -0.758    0.449    
bili          -16.36     104.49  -0.157    0.876    
trt:bili       47.96      59.70   0.803    0.422    
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 2104 on 272 degrees of freedom
Multiple R-squared:  0.02201,	Adjusted R-squared:  0.01122 
F-statistic: 2.041 on 3 and 272 DF,  p-value: 0.1085

### Mediation analysis 
             est        se           Z         p      lower     upper
cde  -208.173326 330.74706 -0.62940341 0.5290850 -856.42564 440.07899
pnde -114.314420 305.81912 -0.37379749 0.7085550 -713.70888 485.08004
tnie   83.798808  74.56189  1.12388258 0.2610628  -62.33981 229.93743
tnde  -62.977859 310.86035 -0.20259213 0.8394538 -672.25295 546.29723
pnie   32.462248  46.60957  0.69647173 0.4861335  -58.89083 123.81533
te    -30.515611 309.05348 -0.09873893 0.9213456 -636.24931 575.21808
pm     -2.746096  28.31465 -0.09698499 0.9227383  -58.24180  52.74961

Evaluated at:
avar: trt
 a1 (intervened value of avar) = 2.3
 a0 (reference value of avar)  = 1.1
mvar: bili
 m_cde (intervend value of mvar for cde) = 1.4
cvar: 
 c_cond (covariate vector value) = 

Note that effect estimates can vary over m_cde and c_cond values when interaction = TRUE.