There are multiple errors coming when I run histogram. Please fix them.

# Define the randomVariate class

randomVariate $<-$ function$($distFormula$,$ defs$)\{$

# Validate input arguments

stopifnot$($is$.$list$($defs$))$

# Define the S$3$ class object

dist $<-$ list$($formula $=$ deparse$($distFormula$),$ definitions $=$ defs$)$

# Define the sample function

distSsample $<-$ function$($n$)\{$

# Evaluate the formula using the provided definitions

eval$($distFormula$,$ envir $=$ defs, enclos $=$ parent.frame$())$

$\}$

# Define the print method

print.randomVariate $<-$ function$($obj$)\{$

cat$("$Formula:$",$ deparse$($obj$formula$),"$ Definitions: $")$

for $($key in names$($obj$definitions$))\{$

cat$($key$,"$:$",$ deparse$($obj$definitions$[[$key$]]),"")$

$\}$

$\}$

# Return the object

class$($dist$)<-$ c$("$randomVariate$",$ "function"$)$

return$($dist$)$

$\}$

# Example usage

# Define a new random variable

newDist $<-$ randomVariate$($distFormula $=$ ~x$^2+$ y$^2,$

defs $=$ list$($x $=$ function$($n$)\{$ rnorm$($n$,$ mean $=0,$ sd $=0\mathrm{.}1)\},$

y $=$ function$($n$)\{$ rnorm$($n$,$ mean $=0,$ sd $=0\mathrm{.}1)\}))$

# Print the new random variable

print$($newDist$)$

# Extract samples from the random variable

sample$1<-$ newDist$distSsample$(10^5)$

# Create the histogram using the extracted samples

hist$($as$.$numeric$($sample$1),$ breaks $=$ "Scott", probability $=$ TRUE, col $=$ rgb$(1,0,1,0\mathrm{.}2),$ density $=20,$ angle $=-45)$

# Add density plot lines

lines$($density$($as$.$numeric$($sample$1),$ adjust $=0\mathrm{.}5),$ col $=$ rgb$(1,0,1,1))$